def testObsMetaDataBounds(self):
"""
Make sure that the bound specifications (i.e. a circle or a box on the sky) are correctly
passed through to the resulting ObservationMetaData
"""
gen = ObservationMetaDataGenerator()
#Test a cirlce with a specified radius
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i', boundLength=0.9)
ct = 0
for obs_metadata in results:
self.assertTrue(isinstance(obs_metadata.bounds,CircleBounds))
# include some wiggle room, in case ObservationMetaData needs to
# adjust the boundLength to accommodate the transformation between
# ICRS and observed coordinates
self.assertGreaterEqual(obs_metadata.bounds.radiusdeg, 0.9)
self.assertLess(obs_metadata.bounds.radiusdeg, 0.95)
self.assertAlmostEqual(obs_metadata.bounds.RA, obs_metadata.phoSimMetaData['pointingRA'][0], 5)
self.assertAlmostEqual(obs_metadata.bounds.DEC, obs_metadata.phoSimMetaData['pointingDec'][0], 5)
ct += 1
#Make sure that some ObservationMetaData were tested
self.assertGreater(ct, 0)
boundLengthList = [1.2, (1.2, 0.6)]
for boundLength in boundLengthList:
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i',
boundType='box', boundLength=boundLength)
if hasattr(boundLength, '__len__'):
dra = boundLength[0]
ddec = boundLength[1]
else:
dra = boundLength
ddec = boundLength
ct = 0
for obs_metadata in results:
RAdeg = numpy.degrees(obs_metadata.phoSimMetaData['pointingRA'][0])
DECdeg = numpy.degrees(obs_metadata.phoSimMetaData['pointingDec'][0])
self.assertTrue(isinstance(obs_metadata.bounds,BoxBounds))
self.assertAlmostEqual(obs_metadata.bounds.RAminDeg, RAdeg-dra, 10)
self.assertAlmostEqual(obs_metadata.bounds.RAmaxDeg, RAdeg+dra, 10)
self.assertAlmostEqual(obs_metadata.bounds.DECminDeg, DECdeg-ddec, 10)
self.assertAlmostEqual(obs_metadata.bounds.DECmaxDeg, DECdeg+ddec, 10)
self.assertAlmostEqual(obs_metadata.bounds.RA, obs_metadata.phoSimMetaData['pointingRA'][0], 5)
self.assertAlmostEqual(obs_metadata.bounds.DEC, obs_metadata.phoSimMetaData['pointingDec'][0], 5)
ct += 1
#Make sure that some ObservationMetaData were tested
self.assertGreater(ct, 0)
def test_multiband_light_curves(self):
"""
Check that multi-band light curves are returned correctly.
"""
raRange = (78.0, 82.0)
decRange = (-69.0, -65.0)
bandpass = ('r', 'g')
gen = StellarLightCurveGenerator(self.stellar_db, self.opsimDb)
pointings = gen.get_pointings(raRange, decRange, bandpass=bandpass)
lc_dict, truth_info = gen.light_curves_from_pointings(pointings)
self.assertGreater(len(lc_dict), 2)
obs_gen = ObservationMetaDataGenerator(database=self.opsimDb, driver='sqlite')
control_pointings_r = obs_gen.getObservationMetaData(fieldRA=raRange, fieldDec=decRange,
telescopeFilter='r', boundLength=1.75)
control_pointings_g = obs_gen.getObservationMetaData(fieldRA=raRange, fieldDec=decRange,
telescopeFilter='g', boundLength=1.75)
self.assertGreater(len(control_pointings_g), 0)
self.assertGreater(len(control_pointings_r), 0)
ct = 0
for obs in control_pointings_r:
cat = stellarControlCatalog(self.stellar_db,
obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = lc_dict[star_obj[0]]['r']
dex = np.argmin(np.abs(lc['mjd']-obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex]-obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex]-star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex]-star_obj[4]), 1.0e-7)
for obs in control_pointings_g:
cat = stellarControlCatalog(self.stellar_db,
obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = lc_dict[star_obj[0]]['g']
dex = np.argmin(np.abs(lc['mjd']-obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex]-obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex]-star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex]-star_obj[4]), 1.0e-7)
# Verify that the same number of objects and observations were found in the
# catalogs and the LightCurveGenerator output
total_ct = 0
for obj_name in lc_dict:
for bandpass in lc_dict[obj_name]:
total_ct += len(lc_dict[obj_name][bandpass]['mjd'])
self.assertEqual(ct, total_ct)
def test_sne_multiband_light_curves(self):
"""
Generate some super nova light curves. Verify that they come up with the same
magnitudes and uncertainties as supernova catalogs. Use multiband light curves.
"""
gen = SNIaLightCurveGenerator(self.db, self.opsimDb)
raRange = (78.0, 85.0)
decRange = (-69.0, -65.0)
pointings = gen.get_pointings(raRange, decRange, bandpass=('r', 'z'))
gen.sn_universe._midSurveyTime = 49000.0
gen.sn_universe._snFrequency = 0.001
self.assertGreater(len(pointings), 1)
lc_dict, truth = gen.light_curves_from_pointings(pointings)
self.assertGreater(len(lc_dict), 0)
obs_gen = ObservationMetaDataGenerator(database=self.opsimDb, driver='sqlite')
control_obs_r = obs_gen.getObservationMetaData(fieldRA=raRange, fieldDec=decRange,
telescopeFilter='r', boundLength=1.75)
control_obs_z = obs_gen.getObservationMetaData(fieldRA=raRange, fieldDec=decRange,
telescopeFilter='z', boundLength=1.75)
self.assertGreater(len(control_obs_r), 0)
self.assertGreater(len(control_obs_z), 0)
ct_r = 0
for obs in control_obs_r:
cat = SNIaLightCurveControlCatalog(self.db, obs_metadata=obs)
for sn in cat.iter_catalog():
if sn[1] > 0.0:
ct_r += 1
lc = lc_dict[sn[0]]['r']
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['flux'][dex] - sn[1]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - sn[2]), 1.0e-7)
self.assertGreater(ct_r, 0)
ct_z = 0
for obs in control_obs_z:
cat = SNIaLightCurveControlCatalog(self.db, obs_metadata=obs)
for sn in cat.iter_catalog():
if sn[1] > 0.0:
ct_z += 1
lc = lc_dict[sn[0]]['z']
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['flux'][dex] - sn[1]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - sn[2]), 1.0e-7)
self.assertGreater(ct_z, 0)
def _read_pointing_info(self, opsim_db):
try:
self.ratel = self.eimage[0].header['RATEL']
self.dectel = self.eimage[0].header['DECTEL']
self.rotangle = self.eimage[0].header['ROTANGLE']
return
except KeyError:
if opsim_db is None:
raise RuntimeError("eimage file does not have pointing info. "
"Need an opsim db file.")
# Read from the opsim db.
# We need an ObservationMetaData object to use the getRotSkyPos
# function.
obs_gen = ObservationMetaDataGenerator(database=opsim_db,
driver="sqlite")
obs_md = obs_gen.getObservationMetaData(obsHistID=self.visit,
boundType='circle',
boundLength=0)[0]
# Extract pointing info from opsim db for desired visit.
conn = sqlite3.connect(opsim_db)
query = """select descDitheredRA, descDitheredDec,
descDitheredRotTelPos from summary where
obshistid={}""".format(self.visit)
curs = conn.execute(query)
ra, dec, rottelpos = [np.degrees(x) for x in curs][0]
conn.close()
self.ratel, self.dectel = ra, dec
obs_md.pointingRA = ra
obs_md.pointingDec = dec
self.rotangle = getRotSkyPos(ra, dec, obs_md, rottelpos)
def test_query(self):
"""
Use ObservationMetaData to query an OpSim-like database that contains
dithering columns. Make sure that the dithering columns get carried
over into the OpsimMetaData of the resulting ObservationMetaData.
"""
gen = ObservationMetaDataGenerator(database=self.fake_db_name, driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=(0.0, 180.0))
self.assertGreater(len(obs_list), 0)
found_list = []
for obs in obs_list:
obsid = obs.OpsimMetaData['obsHistID']
control_dict = self.db_control[obsid]
self.assertAlmostEqual(obs._pointingRA, control_dict['ra'], 11)
self.assertAlmostEqual(obs._pointingDec, control_dict['dec'], 11)
self.assertAlmostEqual(obs._rotSkyPos, control_dict['rot'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['m5'], control_dict['m5'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['raTestDithering'], control_dict['raDith'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['decTestDithering'], control_dict['decDith'], 11)
self.assertAlmostEqual(obs.mjd.TAI, control_dict['mjd'], 11)
self.assertEqual(obs.bandpass, 'g')
self.assertGreaterEqual(obs.pointingRA, 0.0)
self.assertLessEqual(obs.pointingRA, 180.0)
found_list.append(obs.OpsimMetaData['obsHistID'])
# check that the entries not returned do, in fact, violate the query
for ix in range(len(self.db_control)):
if ix not in found_list:
self.assertGreater(self.db_control[ix]['ra'], np.radians(180.0))
def make_refcat(opsim_db, obsHistID, boundLength, outfile,
catsim_db_info=None, chunk_size=20000):
"""
Create a reference catalog of stars to use for astrometry from the
CatSim db tables.
Parameters
----------
opsim_db : str
OpSim database sqlite file
obsHistID : int
Visit number to provide the center of the extraction region.
boundLength : float
Radius of the extraction region in units of degrees.
outfile : str
Filename for the reference catalog output file.
catsim_db_info : dict, optional
Connection information (host, port, database, driver) for the CatSim
database. Default: connection info for the UW fatboy server.
chunk_size : int, optional
The memory chunk size to pass to InstanceCatalog.write_catalog
"""
if catsim_db_info is None:
catsim_db_info = catsim_uw
generator = ObservationMetaDataGenerator(database=opsim_db, driver='sqlite')
obs_metadata = generator.getObservationMetaData(obsHistID=obsHistID,
boundLength=boundLength)[0]
stars = CatalogDBObject.from_objid('allstars', **catsim_db_info)
ref_stars = SimulationReference(stars, obs_metadata=obs_metadata)
ref_stars.write_catalog(outfile, write_mode='w', write_header=True,
chunk_size=chunk_size)
def testCreationOfPhoSimCatalog_3(self):
"""
Make sure that we can create PhoSim input catalogs using the returned
ObservationMetaData.
Test that an error is actually raised if we try to build a PhoSim catalog
with a v3 header map using a v4 ObservationMetaData
"""
dbName = tempfile.mktemp(dir=ROOT, prefix='obsMetaDataGeneratorTest-', suffix='.db')
makePhoSimTestDB(filename=dbName)
bulgeDB = testGalaxyBulgeDBObj(driver='sqlite', database=dbName)
opsim_db = os.path.join(getPackageDir('sims_data'), 'OpSimData',
'astro-lsst-01_2014.db')
assert os.path.isfile(opsim_db)
gen = ObservationMetaDataGenerator(opsim_db, driver='sqlite')
results = gen.getObservationMetaData(fieldRA=(70.0, 85.0),
telescopeFilter='i')
self.assertGreater(len(results), 0)
testCat = PhoSimCatalogSersic2D(bulgeDB, obs_metadata=results[0])
testCat.phoSimHeaderMap = DefaultPhoSimHeaderMap
with lsst.utils.tests.getTempFilePath('.txt') as catName:
with self.assertRaises(RuntimeError):
testCat.write_catalog(catName)
if os.path.exists(dbName):
os.unlink(dbName)
def setUp(self):
self.obsHistID = 1418971
obs_gen = ObservationMetaDataGenerator(database=os.environ['OPSIMDB'],
driver='sqlite')
self.obs_md \
= obs_gen.getObservationMetaData(obsHistID=self.obsHistID)[0]
self.outfile = 'phosim_instcat_%i.txt' % self.obsHistID
def test_query(self):
"""
Use ObservationMetaData to query an OpSim-like database that contains
dithering columns. Make sure that the dithering columns get carried
over into the OpsimMetaData of the resulting ObservationMetaData.
"""
gen = ObservationMetaDataGenerator(database=self.fake_db_name, driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=(0.0, 180.0))
self.assertGreater(len(obs_list), 0)
found_list = []
for obs in obs_list:
obsid = obs.OpsimMetaData['obsHistID']
control_dict = self.db_control[obsid]
self.assertAlmostEqual(obs._pointingRA, control_dict['ra'], 11)
self.assertAlmostEqual(obs._pointingDec, control_dict['dec'], 11)
self.assertAlmostEqual(obs._rotSkyPos, control_dict['rot'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['m5'], control_dict['m5'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['raTestDithering'], control_dict['raDith'], 11)
self.assertAlmostEqual(obs.OpsimMetaData['decTestDithering'], control_dict['decDith'], 11)
self.assertAlmostEqual(obs.mjd.TAI, control_dict['mjd'], 11)
self.assertEqual(obs.bandpass, 'g')
self.assertGreaterEqual(obs.pointingRA, 0.0)
self.assertLessEqual(obs.pointingRA, 180.0)
found_list.append(obs.OpsimMetaData['obsHistID'])
# check that the entries not returned do, in fact, violate the query
for ix in range(len(self.db_control)):
if ix not in found_list:
self.assertGreater(self.db_control[ix]['ra'], np.radians(180.0))
def testIncompletDB(self):
"""
Test that if the mock OpSim database does not have all required columns, an exception
is raised.
"""
scratch_dir = os.path.join(getPackageDir('sims_catUtils'), 'tests',
'scratchSpace')
opsim_db_name = os.path.join(scratch_dir,
'incomplete_mock_opsim_sqlite.db')
if os.path.exists(opsim_db_name):
os.unlink(opsim_db_name)
conn = sqlite3.connect(opsim_db_name)
c = conn.cursor()
c.execute('''CREATE TABLE Summary (obsHistID int, expMJD real, '''
'''fieldRA real, filter text)''')
conn.commit()
rng = np.random.RandomState(77)
n_pointings = 100
ra_data = rng.random_sample(n_pointings) * 2.0 * np.pi
mjd_data = rng.random_sample(n_pointings) * 1000.0 + 59580.0
filter_dexes = rng.randint(0, 6, n_pointings)
bands = ('u', 'g', 'r', 'i', 'z', 'y')
filter_data = []
for ii in filter_dexes:
filter_data.append(bands[ii])
for ii in range(n_pointings):
cmd = '''INSERT INTO Summary VALUES(%i, %f, %f, '%s')''' % \
(ii, mjd_data[ii], ra_data[ii], filter_data[ii])
c.execute(cmd)
conn.commit()
conn.close()
incomplete_obs_gen = ObservationMetaDataGenerator(
database=opsim_db_name)
with self.assertRaises(RuntimeError) as context:
incomplete_obs_gen.getObservationMetaData(telescopeFilter='r')
self.assertIn(
"ObservationMetaDataGenerator requires that the database",
context.exception.args[0])
if os.path.exists(opsim_db_name):
os.unlink(opsim_db_name)
def testQueryLimit(self):
"""
Test that, when we specify a limit on the number of ObservationMetaData we want returned,
that limit is respected
"""
gen = ObservationMetaDataGenerator()
results = gen.getObservationMetaData(fieldRA=(numpy.degrees(1.370916), numpy.degrees(1.5348635)),
limit=20)
self.assertEqual(len(results),20)
def setUpClass(cls):
opsimdb = os.path.join(getPackageDir('sims_data'), 'OpSimData',
'opsimblitz1_1133_sqlite.db')
obs_gen = ObservationMetaDataGenerator(opsimdb)
cls.obs_dict = {}
for band in 'ugrizy':
obs_list = obs_gen.getObservationMetaData(telescopeFilter=band, limit=10)
assert len(obs_list) > 0
cls.obs_dict[band] = obs_list[0]
def _set_obs_md_results(self, opsim_db, fieldRA, fieldDec, boundLength, pickle_file):
if pickle_file is not None and os.path.isfile(pickle_file):
self.obs_md_results = pickle.load(open(pickle_file))
else:
# Generate the observation metadata from the db file.
gen = ObservationMetaDataGenerator(database=opsim_db, driver="sqlite")
self.obs_md_results = gen.getObservationMetaData(
fieldRA=fieldRA, fieldDec=fieldDec, boundLength=boundLength
)
if pickle_file is not None:
pickle.dump(self.obs_md_results, open(pickle_file, "w"))
def _set_obs_md_results(self, opsim_db, fieldRA, fieldDec, boundLength,
pickle_file):
if pickle_file is not None and os.path.isfile(pickle_file):
self.obs_md_results = pickle.load(open(pickle_file))
else:
# Generate the observation metadata from the db file.
gen = ObservationMetaDataGenerator(database=opsim_db,
driver='sqlite')
self.obs_md_results = gen.getObservationMetaData(
fieldRA=fieldRA, fieldDec=fieldDec, boundLength=boundLength)
if pickle_file is not None:
pickle.dump(self.obs_md_results, open(pickle_file, 'w'))
def testIncompletDB(self):
"""
Test that if the mock OpSim database does not have all required columns, an exception
is raised.
"""
opsim_db_name = tempfile.mktemp(dir=ROOT, prefix='incomplete_mock_opsim_sqlite-', suffix='.db')
conn = sqlite3.connect(opsim_db_name)
c = conn.cursor()
c.execute('''CREATE TABLE Summary (obsHistID int, expMJD real, '''
'''fieldRA real, filter text)''')
conn.commit()
rng = np.random.RandomState(77)
n_pointings = 100
ra_data = rng.random_sample(n_pointings)*2.0*np.pi
mjd_data = rng.random_sample(n_pointings)*1000.0 + 59580.0
filter_dexes = rng.randint(0, 6, n_pointings)
bands = ('u', 'g', 'r', 'i', 'z', 'y')
filter_data = []
for ii in filter_dexes:
filter_data.append(bands[ii])
for ii in range(n_pointings):
cmd = '''INSERT INTO Summary VALUES(%i, %f, %f, '%s')''' % \
(ii, mjd_data[ii], ra_data[ii], filter_data[ii])
c.execute(cmd)
conn.commit()
conn.close()
incomplete_obs_gen = ObservationMetaDataGenerator(database=opsim_db_name)
with self.assertRaises(RuntimeError) as context:
incomplete_obs_gen.getObservationMetaData(telescopeFilter='r')
self.assertIn("ObservationMetaDataGenerator requires that the database",
context.exception.args[0])
if os.path.exists(opsim_db_name):
os.unlink(opsim_db_name)
def testQueryOnFilter(self):
"""
Test that queries on the filter work.
"""
gen = ObservationMetaDataGenerator()
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i')
ct = 0
for obs_metadata in results:
self.assertAlmostEqual(obs_metadata.phoSimMetaData['pointingRA'][0],1.370916)
self.assertEqual(obs_metadata.phoSimMetaData['Opsim_filter'][0],'i')
ct += 1
#Make sure that more than zero ObservationMetaData were returned
self.assertGreater(ct, 0)
def testCreationOfPhoSimCatalog(self):
"""
Make sure that we can create PhoSim input catalogs using the returned ObservationMetaData.
This test will just make sure that all of the expected header entries are there.
"""
dbName = 'obsMetaDataGeneratorTest.db'
catName = 'testPhoSimFromObsMetaDataGenerator.txt'
if os.path.exists(dbName):
os.unlink(dbName)
junk_obs_metadata = makePhoSimTestDB(filename=dbName)
bulgeDB = testGalaxyBulge(driver='sqlite', database=dbName)
gen = ObservationMetaDataGenerator()
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916),telescopeFilter='i')
testCat = PhoSimCatalogSersic2D(bulgeDB, obs_metadata=results[0])
testCat.write_catalog(catName)
filterTranslation=['u','g','r','i','z','y']
with open(catName) as inputFile:
lines = inputFile.readlines()
ix = 0
for control in gen.columnMapping:
if control[0] != 'm5' and control[0]!='skyBrightness' and control[0]!='seeing':
words = lines[ix].split()
self.assertEqual(control[2].replace('pointing', 'Unrefracted_'), words[0])
if control[0] != 'telescopeFilter':
if control[4] is not None:
value = control[4](float(words[1]))
else:
value = float(words[1])
self.assertAlmostEqual(value, results[0].phoSimMetaData[control[2]][0], 5)
else:
self.assertEqual(filterTranslation[int(words[1])],results[0].phoSimMetaData[control[2]][0])
ix += 1
if os.path.exists(catName):
os.unlink(catName)
if os.path.exists(dbName):
os.unlink(dbName)
class OpsimdbInterface(object):
def __init__(
self,
opsim_db='/global/projecta/projectdirs/lsst/groups/SSim/DC2/minion_1016_desc_dithered_v4.db'
):
self.conn = sqlite3.connect(opsim_db)
self.obs_gen = ObservationMetaDataGenerator(database=opsim_db,
driver='sqlite')
self._cache = dict()
def get_obs_md(self, obsHistID):
if obsHistID not in self._cache:
self._cache[obsHistID] = self._get_obs_md(obsHistID)
return self._cache[obsHistID]
def _get_obs_md(self, obsHistID):
curs = self.conn.execute(
'select descDitheredRA, descDitheredDec, descDitheredRotTelPos from Summary where obsHistID={}'
.format(obsHistID))
data = [x for x in curs][0]
ra, dec = [x * 180. / np.pi for x in data[:2]]
rottelpos = data[2]
obs_md = self.obs_gen.getObservationMetaData(obsHistID=obsHistID,
boundType='circle',
boundLength=0.1)[0]
obs_md.pointingRA = ra
obs_md.pointingDec = dec
obs_md.OpsimMetaData['rotTelPos'] = rottelpos
obs_md.rotSkyPos = getRotSkyPos(obs_md._pointingRA,
obs_md._pointingDec, obs_md,
rottelpos) * 180. / np.pi
return obs_md
def plot_fov(self, obsHistID, radius=2.047):
obs_md = self.get_obs_md(obsHistID)
ra, dec = obs_md.pointingRA, obs_md.pointingDec
phi = np.linspace(0, 2 * np.pi, 100)
radius /= np.cos(dec * np.pi / 180.)
plt.errorbar(radius * np.sin(phi) + ra,
radius * np.cos(phi) + dec,
fmt='--',
label='{} fov'.format(obsHistID))
class DescObsMdGenerator:
def __init__(self, opsim_db_file):
self.obs_gen = ObservationMetaDataGenerator(database=opsim_db_file,
driver='sqlite')
self.opsim_db_file = opsim_db_file
def create(self, visit):
obs_md = self.obs_gen.getObservationMetaData(obsHistID=visit,
boundType='circle',
boundLength=0)[0]
query = f'''select descDitheredRA, descDitheredDec,
descDitheredRotTelPos from summary where
obsHistID={visit}'''
with sqlite3.connect(self.opsim_db_file) as conn:
curs = conn.execute(query)
ra, dec, rottelpos = [np.degrees(_) for _ in curs][0]
obs_md.pointingRA = ra
obs_md.pointingDec = dec
obs_md.rotSkyPos = getRotSkyPos(ra, dec, obs_md, rottelpos)
return obs_md
def test_spatial_query(self):
"""
Test that spatial queries work
"""
db_dir = os.path.join(getPackageDir('sims_data'), 'OpSimData')
assert os.path.isdir(db_dir)
db_file = os.path.join(db_dir, 'astro-lsst-01_2014.db')
obs_gen = ObservationMetaDataGenerator(db_file)
obs_list = obs_gen.getObservationMetaData(fieldRA=(20.0, 40.0),
fieldDec=(-30.0, -10.0))
self.assertGreater(len(obs_list), 10)
with sqlite3.connect(db_file) as conn:
cursor = conn.cursor()
query = '''SELECT observationId, fieldRA, fieldDec,
observationStartMJD, filter
FROM SummaryAllProps WHERE
fieldRA BETWEEN 20.0 AND 40.0 AND
fieldDec BETWEEN -30.0 AND -10.0
ORDER BY observationId'''
control = cursor.execute(query).fetchall()
self.assertEqual(len(control), len(obs_list))
for ii in range(len(obs_list)):
self.assertEqual(obs_list[ii].OpsimMetaData['observationId'],
int(control[ii][0]))
self.assertAlmostEqual(obs_list[ii].pointingRA,
float(control[ii][1]), 10)
self.assertAlmostEqual(obs_list[ii].pointingDec,
float(control[ii][2]), 10)
self.assertAlmostEqual(obs_list[ii].mjd.TAI,
float(control[ii][3]), 7)
self.assertEqual(obs_list[ii].bandpass,
str(control[ii][4]))
self.assertGreaterEqual(obs_list[ii].pointingRA, 20.0)
self.assertLessEqual(obs_list[ii].pointingRA, 40.0)
self.assertGreaterEqual(obs_list[ii].pointingDec, -30.0)
self.assertLessEqual(obs_list[ii].pointingDec, -10.0)
def test_spatial_query(self):
"""
Test that spatial queries work
"""
db_dir = os.path.join(getPackageDir('sims_data'), 'OpSimData')
assert os.path.isdir(db_dir)
db_file = os.path.join(db_dir, 'astro-lsst-01_2014.db')
obs_gen = ObservationMetaDataGenerator(db_file)
obs_list = obs_gen.getObservationMetaData(fieldRA=(20.0, 40.0),
fieldDec=(-30.0, -10.0))
self.assertGreater(len(obs_list), 10)
with sqlite3.connect(db_file) as conn:
cursor = conn.cursor()
query = '''SELECT observationId, fieldRA, fieldDec,
observationStartMJD, filter
FROM SummaryAllProps WHERE
fieldRA BETWEEN 20.0 AND 40.0 AND
fieldDec BETWEEN -30.0 AND -10.0
ORDER BY observationId'''
control = cursor.execute(query).fetchall()
self.assertEqual(len(control), len(obs_list))
for ii in range(len(obs_list)):
self.assertEqual(obs_list[ii].OpsimMetaData['observationId'],
int(control[ii][0]))
self.assertAlmostEqual(obs_list[ii].pointingRA,
float(control[ii][1]), 10)
self.assertAlmostEqual(obs_list[ii].pointingDec,
float(control[ii][2]), 10)
self.assertAlmostEqual(obs_list[ii].mjd.TAI, float(control[ii][3]),
7)
self.assertEqual(obs_list[ii].bandpass, str(control[ii][4]))
self.assertGreaterEqual(obs_list[ii].pointingRA, 20.0)
self.assertLessEqual(obs_list[ii].pointingRA, 40.0)
self.assertGreaterEqual(obs_list[ii].pointingDec, -30.0)
self.assertLessEqual(obs_list[ii].pointingDec, -10.0)
def testQueryExactValues(self):
"""
Test that ObservationMetaData returned by a query demanding an exact value do,
in fact, adhere to that requirement.
"""
gen = ObservationMetaDataGenerator()
bounds = [
('obsHistID',5973),
('expDate',1220779),
('fieldRA',numpy.degrees(1.370916)),
('fieldDec',numpy.degrees(-0.456238)),
('moonRA',numpy.degrees(2.914132)),
('moonDec',numpy.degrees(0.06305)),
('rotSkyPos',numpy.degrees(3.116656)),
('telescopeFilter','i'),
('rawSeeing',0.728562),
('seeing', 0.88911899999999999),
('sunAlt',numpy.degrees(-0.522905)),
('moonAlt',numpy.degrees(0.099096)),
('dist2Moon',numpy.degrees(1.570307)),
('moonPhase',52.2325),
('expMJD',49367.129396),
('altitude',numpy.degrees(0.781015)),
('azimuth',numpy.degrees(3.470077)),
('visitExpTime',30.0),
('airmass',1.420459),
('m5',22.815249),
('skyBrightness',19.017605)]
for ii in range(len(bounds)):
tag = bounds[ii][0]
if tag != 'telescopeFilter' and tag != 'visitExpTime':
name = gen.columnMapping[ii][2]
args = {}
args[tag] = bounds[ii][1]
results = gen.getObservationMetaData(**args)
if gen.columnMapping[ii][4] is not None:
value = gen.columnMapping[ii][4](bounds[ii][1])
else:
value = bounds[ii][1]
if name is not None:
ct = 0
for obs_metadata in results:
self.assertAlmostEqual(value, obs_metadata.phoSimMetaData[name][0],10)
ct += 1
#Make sure that we did not choose a value which returns zero ObservationMetaData
self.assertGreater(ct, 0)
elif tag == 'm5':
ct = 0
for obs_metadata in results:
self.assertAlmostEqual(value, obs_metadata.m5.values()[0])
ct += 1
self.assertGreater(ct, 0)
elif tag == 'seeing':
ct = 0
for obs_metadata in results:
self.assertAlmostEqual(value, obs_metadata.seeing.values()[0])
ct += 1
self.assertGreater(ct, 0)
def test_agn_light_curves(self):
"""
Test the AgnLightCurveGenerator by generating some AGN light
curves and comparing them to the results obtained by generating a
series of InstanceCatalogs containing the same objects at the same
MJDs
"""
raRange = (78.0, 85.0)
decRange = (-69.0, -65.0)
bandpass = '******'
lc_gen = AgnLightCurveGenerator(self.agn_db, self.opsimDb)
pointings = lc_gen.get_pointings(raRange, decRange, bandpass=bandpass)
for row in pointings:
for obs in row:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI-49000.0+59580.0)
obs.mjd = mjd
test_light_curves, truth_info = lc_gen.light_curves_from_pointings(pointings)
self.assertGreater(len(test_light_curves), 2) # make sure we got some light curves
for unique_id in test_light_curves:
# verify that the sources returned all do vary by making sure that the
# np.diff run on the magnitudes reutrns something non-zero
self.assertGreater(np.abs(np.diff(test_light_curves[unique_id][bandpass]['mag'])).max(), 0.0)
self.assertGreater(len(test_light_curves[unique_id][bandpass]['mjd']), 0)
# Now test that specifying a small chunk_size does not change the output
# light curves
chunk_light_curves, truth_info = lc_gen.light_curves_from_pointings(pointings, chunk_size=1)
self.assertGreater(len(chunk_light_curves), 2)
for unique_id in test_light_curves:
self.assertEqual(len(test_light_curves[unique_id][bandpass]['mjd']),
len(chunk_light_curves[unique_id][bandpass]['mjd']))
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['mjd'],
chunk_light_curves[unique_id][bandpass]['mjd'])
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['mag'],
chunk_light_curves[unique_id][bandpass]['mag'])
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['error'],
chunk_light_curves[unique_id][bandpass]['error'])
# Now find all of the ObservationMetaData that were included in our
# light curves, generate InstanceCatalogs from them separately,
# and verify that the contents of the InstanceCatalogs agree with
# the contents of the light curves.
gen = ObservationMetaDataGenerator(database=self.opsimDb,
driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=raRange,
fieldDec=decRange,
telescopeFilter=bandpass,
boundLength=1.75)
for obs in obs_list:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI-49000.0+59580.0)
obs.mjd = mjd
ct = 0
for obs in obs_list:
cat = agnControlCatalog(self.agn_db,
obs_metadata=obs)
for agn_obj in cat.iter_catalog():
ct += 1
lc = test_light_curves[agn_obj[0]][bandpass]
dex = np.argmin(np.abs(lc['mjd']-obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex]-obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex]-agn_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex]-agn_obj[4]), 1.0e-7)
# Verify that the catalogs and LightCurveGenerator returned the
# same number of observations
total_ct = 0
for obj_name in test_light_curves:
for band in test_light_curves[obj_name]:
total_ct += len(test_light_curves[obj_name][band]['mjd'])
self.assertEqual(ct, total_ct)
import copy
from lsst.sims.catUtils.utils import ObservationMetaDataGenerator
from lsst.sims.catUtils.exampleCatalogDefinitions import PhoSimCatalogPoint
from lsst.sims.catUtils.exampleCatalogDefinitions import DefaultPhoSimHeaderMap
from lsst.sims.catUtils.baseCatalogModels import StarObj
if __name__ == "__main__":
db = StarObj(database='LSSTCATSIM', host='fatboy.phys.washington.edu',
port=1433, driver='mssql+pymssql')
opsimdb = os.path.join('/Users', 'danielsf', 'physics', 'lsst_150412',
'Development', 'garage', 'OpSimData',
'minion_1016_sqlite.db')
assert os.path.exists(opsimdb)
obs_gen = ObservationMetaDataGenerator(database=opsimdb)
obs_list = obs_gen.getObservationMetaData(obsHistID=230)
obs = obs_list[0]
obs.boundLength=0.05
phosim_header_map = copy.deepcopy(DefaultPhoSimHeaderMap)
phosim_header_map['rawSeeing'] = ('rawSeeing', None)
phosim_header_map['FWHMeff'] = ('FWHMeff', None)
phosim_header_map['FWHMgeom'] = ('FWHMgeom',None)
cat = PhoSimCatalogPoint(db, obs_metadata=obs)
cat.phoSimHeaderMap = phosim_header_map
cat.write_catalog('catalogs/star_catalog.txt', chunk_size=10000)
def test_agn_light_curves(self):
"""
Test the AgnLightCurveGenerator by generating some AGN light
curves and comparing them to the results obtained by generating a
series of InstanceCatalogs containing the same objects at the same
MJDs
"""
raRange = (78.0, 85.0)
decRange = (-69.0, -65.0)
bandpass = '******'
lc_gen = AgnLightCurveGenerator(self.agn_db, self.opsimDb)
pointings = lc_gen.get_pointings(raRange, decRange, bandpass=bandpass)
for row in pointings:
for obs in row:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI - 49000.0 + 59580.0)
obs.mjd = mjd
test_light_curves, truth_info = lc_gen.light_curves_from_pointings(
pointings)
self.assertGreater(len(test_light_curves),
2) # make sure we got some light curves
for unique_id in test_light_curves:
# verify that the sources returned all do vary by making sure that the
# np.diff run on the magnitudes reutrns something non-zero
self.assertGreater(
np.abs(np.diff(
test_light_curves[unique_id][bandpass]['mag'])).max(), 0.0)
self.assertGreater(
len(test_light_curves[unique_id][bandpass]['mjd']), 0)
# Now test that specifying a small chunk_size does not change the output
# light curves
chunk_light_curves, truth_info = lc_gen.light_curves_from_pointings(
pointings, chunk_size=1)
self.assertGreater(len(chunk_light_curves), 2)
for unique_id in test_light_curves:
self.assertEqual(
len(test_light_curves[unique_id][bandpass]['mjd']),
len(chunk_light_curves[unique_id][bandpass]['mjd']))
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['mjd'],
chunk_light_curves[unique_id][bandpass]['mjd'])
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['mag'],
chunk_light_curves[unique_id][bandpass]['mag'])
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['error'],
chunk_light_curves[unique_id][bandpass]['error'])
# Now find all of the ObservationMetaData that were included in our
# light curves, generate InstanceCatalogs from them separately,
# and verify that the contents of the InstanceCatalogs agree with
# the contents of the light curves.
gen = ObservationMetaDataGenerator(database=self.opsimDb,
driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=raRange,
fieldDec=decRange,
telescopeFilter=bandpass,
boundLength=1.75)
for obs in obs_list:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI - 49000.0 + 59580.0)
obs.mjd = mjd
ct = 0
for obs in obs_list:
cat = agnControlCatalog(self.agn_db, obs_metadata=obs)
for agn_obj in cat.iter_catalog():
ct += 1
lc = test_light_curves[agn_obj[0]][bandpass]
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex] - agn_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - agn_obj[4]), 1.0e-7)
# Verify that the catalogs and LightCurveGenerator returned the
# same number of observations
total_ct = 0
for obj_name in test_light_curves:
for band in test_light_curves[obj_name]:
total_ct += len(test_light_curves[obj_name][band]['mjd'])
self.assertEqual(ct, total_ct)
#AperatureRadius = 1.75 #LSST's Actual FoV in degrees
SearchRegionRA = (-30.0,-20.0)
SearchRegionDec = (-30.0,-20.0)
SearchAirmass = (1.0,1.5)
DesiredFilter = None
import eups
import os
from lsst.sims.catUtils.utils import ObservationMetaDataGenerator
from lsst.sims.catalogs.generation.db import ObservationMetaData
#help(ObservationMetaDataGenerator)
opsimdb = os.path.join(eups.productDir('sims_data'),'OpSimData','enigma_1189_sqlite.db')
gen = ObservationMetaDataGenerator(driver='sqlite', database=opsimdb)
SimObData = gen.getObservationMetaData(boundType=AperatureType, boundLength=AperatureRadius,
fieldRA=SearchRegionRA, fieldDec=SearchRegionDec,
airmass=SearchAirmass, telescopeFilter=DesiredFilter)
NumOfObservations = len(SimObData)
#print SimsObData[0].__dict__
from prettytable import PrettyTable
UniquePointings = list({(o.unrefractedRA,o.unrefractedDec) for o in SimObData})
NumOfPointings = len(UniquePointings)
print 'Number of Unique Pointings:', NumOfPointings,'\n'
table2 = PrettyTable(["Pointing RA","Pointing Dec"])
for x in UniquePointings:
table2.add_row([x[0], x[1]])
print table2
ObMetaData = [[] for _ in xrange(NumOfPointings)]
def testQueryOnRanges(self):
"""
Test that ObservationMetaData objects returned by queries of the form
min < value < max
are, in fact, within that range.
Test when querying on both a single and two columns.
"""
gen = ObservationMetaDataGenerator()
#An list containing the bounds of our queries.
#The order of the tuples must correspond to the order of
#self.columnMapping in ObservationMetaDataGenerator.
#This was generated with a separate script which printed
#the median and maximum values of all of the quantities
#in our test opsim database
bounds = [
('obsHistID',(5973, 7000)),
('fieldRA',(numpy.degrees(1.370916), numpy.degrees(1.40))),
('rawSeeing',(0.728562, 0.9)),
('seeing', (0.7, 0.9)),
('dist2Moon',(numpy.degrees(1.570307), numpy.degrees(1.9))),
('expMJD',(49367.129396, 49370.0)),
('airmass',(1.420459, 1.6)),
('m5',(22.815249, 23.0)),
('skyBrightness',(19.017605, 19.5))]
#test querying on a single column
for line in bounds:
tag = line[0]
# find the index of the entry in columnMapping that
# corresponds to this bound
for ii in range(len(gen.columnMapping)):
if gen.columnMapping[ii][0] == tag:
break
if tag != 'telescopeFilter' and tag != 'visitExpTime':
args = {}
args[tag] = line[1]
results = gen.getObservationMetaData(**args)
if tag == 'skyBrightness':
ct = 0
for obs_metadata in results:
self.assertLess(obs_metadata.skyBrightness, line[1][1])
self.assertGreater(obs_metadata.skyBrightness, line[1][0])
ct += 1
self.assertGreater(ct, 0)
elif tag == 'm5':
ct = 0
for obs_metadata in results:
self.assertLess(obs_metadata.m5[obs_metadata.bandpass], line[1][1])
self.assertGreater(obs_metadata.m5[obs_metadata.bandpass], line[1][0])
ct += 1
self.assertGreater(ct, 0)
name = gen.columnMapping[ii][2]
if name is not None:
if gen.columnMapping[ii][4] is not None:
xmin = gen.columnMapping[ii][4](line[1][0])
xmax = gen.columnMapping[ii][4](line[1][1])
else:
xmin = line[1][0]
xmax = line[1][1]
ct = 0
for obs_metadata in results:
ct += 1
self.assertLess(obs_metadata.phoSimMetaData[name][0], xmax)
self.assertGreater(obs_metadata.phoSimMetaData[name][0], xmin)
#make sure that we did not accidentally choose values such that
#no ObservationMetaData were ever returned
self.assertGreater(ct, 0)
#test querying on two columns at once
ct = 0
for ix in range(len(bounds)):
tag1 = bounds[ix][0]
for ii in range(len(gen.columnMapping)):
if gen.columnMapping[ii][0] == tag1:
break
if tag1 != 'telescopeFilter' and tag1 != 'visitExpTime':
name1 = gen.columnMapping[ii][2]
if gen.columnMapping[ii][4] is not None:
xmin = gen.columnMapping[ii][4](bounds[ix][1][0])
xmax = gen.columnMapping[ii][4](bounds[ix][1][1])
else:
xmin = bounds[ix][1][0]
xmax = bounds[ix][1][1]
for jx in range(ii+1, len(bounds)):
tag2 = bounds[jx][0]
for jj in range(len(gen.columnMapping)):
if gen.columnMapping[jj][0] == tag2:
break
if tag2 != 'telescopeFilter' and tag2 != 'visitExpTime':
name2 = gen.columnMapping[jj][2]
if gen.columnMapping[jj][4] is not None:
ymin = gen.columnMapping[jj][4](bounds[jx][1][0])
ymax = gen.columnMapping[jj][4](bounds[jx][1][1])
else:
ymin = bounds[jx][1][0]
ymax = bounds[jx][1][1]
args = {}
args[tag1] = bounds[ix][1]
args[tag2] = bounds[jx][1]
results = gen.getObservationMetaData(**args)
if name1 is not None or name2 is not None:
for obs_metadata in results:
ct += 1
if name1 is not None:
self.assertGreater(obs_metadata.phoSimMetaData[name1][0], xmin)
self.assertLess(obs_metadata.phoSimMetaData[name1][0], xmax)
if name2 is not None:
self.assertGreater(obs_metadata.phoSimMetaData[name2][0], ymin)
self.assertLess(obs_metadata.phoSimMetaData[name2][0], ymax)
#Make sure that we didn't choose values such that no ObservationMetaData were
#ever returned
self.assertGreater(ct, 0)
def testObsMetaDataBounds(self):
"""
Make sure that the bound specifications (i.e. a circle or a box on the sky) are correctly
passed through to the resulting ObservationMetaData
"""
gen = ObservationMetaDataGenerator()
#Test a cirlce with a specified radius
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i', boundLength=0.9)
ct = 0
for obs_metadata in results:
self.assertTrue(isinstance(obs_metadata.bounds,CircleBounds))
self.assertAlmostEqual(obs_metadata.bounds.radiusdeg,0.9,10)
self.assertAlmostEqual(obs_metadata.bounds.RA,obs_metadata.phoSimMetaData['Unrefracted_RA'][0],10)
self.assertAlmostEqual(obs_metadata.bounds.DEC,obs_metadata.phoSimMetaData['Unrefracted_Dec'][0],10)
ct += 1
#Make sure that some ObservationMetaData were tested
self.assertTrue(ct>0)
#test a square
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i',
boundType='box', boundLength=1.2)
ct = 0
for obs_metadata in results:
RAdeg = numpy.degrees(obs_metadata.phoSimMetaData['Unrefracted_RA'][0])
DECdeg = numpy.degrees(obs_metadata.phoSimMetaData['Unrefracted_Dec'][0])
self.assertTrue(isinstance(obs_metadata.bounds,BoxBounds))
self.assertAlmostEqual(obs_metadata.bounds.RAminDeg,RAdeg-1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.RAmaxDeg,RAdeg+1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.DECminDeg,DECdeg-1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.DECmaxDeg,DECdeg+1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.RA,obs_metadata.phoSimMetaData['Unrefracted_RA'][0],10)
self.assertAlmostEqual(obs_metadata.bounds.DEC,obs_metadata.phoSimMetaData['Unrefracted_Dec'][0],10)
ct += 1
#Make sure that some ObservationMetaData were tested
self.assertTrue(ct>0)
#test a rectangle
results = gen.getObservationMetaData(fieldRA=numpy.degrees(1.370916), telescopeFilter='i',
boundType='box', boundLength=(1.2,0.6))
ct = 0
for obs_metadata in results:
RAdeg = numpy.degrees(obs_metadata.phoSimMetaData['Unrefracted_RA'][0])
DECdeg = numpy.degrees(obs_metadata.phoSimMetaData['Unrefracted_Dec'][0])
self.assertTrue(isinstance(obs_metadata.bounds,BoxBounds))
self.assertAlmostEqual(obs_metadata.bounds.RAminDeg,RAdeg-1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.RAmaxDeg,RAdeg+1.2,10)
self.assertAlmostEqual(obs_metadata.bounds.DECminDeg,DECdeg-0.6,10)
self.assertAlmostEqual(obs_metadata.bounds.DECmaxDeg,DECdeg+0.6,10)
self.assertAlmostEqual(obs_metadata.bounds.RA,obs_metadata.phoSimMetaData['Unrefracted_RA'][0],10)
self.assertAlmostEqual(obs_metadata.bounds.DEC,obs_metadata.phoSimMetaData['Unrefracted_Dec'][0],10)
ct += 1
#Make sure that some ObservationMetaData were tested
self.assertTrue(ct>0)
def setUpClass(cls):
# Set directory where scratch work will be done
cls.scratchDir = tempfile.mkdtemp(dir=ROOT, prefix='scratchSpace-')
# ObsMetaData instance with spatial window within which we will
# put galaxies in a fake galaxy catalog
cls.obsMetaDataforCat = ObservationMetaData(boundType='circle',
boundLength=np.degrees(0.25),
pointingRA=np.degrees(0.13),
pointingDec=np.degrees(-1.2),
bandpassName=['r'], mjd=49350.)
# Randomly generate self.size Galaxy positions within the spatial window
# of obsMetaDataforCat
cls.dbname = os.path.join(cls.scratchDir, 'galcat.db')
cls.size = 1000
cls.GalaxyPositionSamps = sample_obsmetadata(obsmetadata=cls.obsMetaDataforCat,
size=cls.size)
# Create a galaxy Table overlapping with the obsMetaData Spatial Bounds
# using positions from the samples above and a database name given by
# self.dbname
vals = cls._createFakeGalaxyDB()
cls.valName = os.path.join(cls.scratchDir, 'valsFromTest.dat')
with open(cls.valName, 'w') as f:
for i, v in enumerate(vals[0]):
f.write(str(np.radians(vals[0][i])) + ' ' + str(np.radians(vals[1][i])) + '\n')
# fig, ax = plt.subplots()
# ax.plot(vals[0][:1000], vals[1][: 1000], '.')
# ax.plot([0.13], [-1.2], 'rs', markersize=8)
# fig.savefig(os.path.join(cls.scratchDir, 'match_galDBPosns.pdf'))
# Read it into a CatalogDBObject galDB
class MyGalaxyCatalog(CatalogDBObject):
'''
Create a like CatalogDBObject connecting to a local sqlite database
'''
objid = 'mytestgals'
tableid = 'gals'
idColKey = 'id'
objectTypeId = 0
appendint = 10000
database = cls.dbname
# dbAddress = './testData/galcat.db'
raColName = 'raJ2000'
decColName = 'decJ2000'
driver = 'sqlite'
# columns required to convert the ra, dec values in degrees
# to radians again
columns = [('id', 'id', int),
('raJ2000', 'raJ2000 * PI()/ 180. '),
('decJ2000', 'decJ2000 * PI()/ 180.'),
('redshift', 'redshift')]
cls.galDB = MyGalaxyCatalog(database=cls.dbname)
# Generate a set of Observation MetaData Outputs that overlap
# the galaxies in space
opsimPath = os.path.join(getPackageDir('sims_data'), 'OpSimData')
opsimDB = os.path.join(opsimPath, 'opsimblitz1_1133_sqlite.db')
generator = ObservationMetaDataGenerator(database=opsimDB)
cls.obsMetaDataResults = generator.getObservationMetaData(limit=100,
fieldRA=(5.0, 8.0),
fieldDec=(-85., -60.),
expMJD=(49300., 49400.),
boundLength=0.15,
boundType='circle')
sncatalog = SNIaCatalog(db_obj=cls.galDB,
obs_metadata=cls.obsMetaDataResults[6],
column_outputs=['t0', 'flux_u', 'flux_g',
'flux_r', 'flux_i', 'flux_z',
'flux_y', 'mag_u', 'mag_g',
'mag_r', 'mag_i', 'mag_z',
'mag_y', 'adu_u', 'adu_g',
'adu_r', 'adu_i', 'adu_z',
'adu_y', 'mwebv'])
sncatalog.suppressDimSN = True
sncatalog.midSurveyTime = sncatalog.mjdobs - 20.
sncatalog.snFrequency = 1.0
cls.fullCatalog = os.path.join(cls.scratchDir, 'testSNCatalogTest.dat')
sncatalog.write_catalog(cls.fullCatalog)
# Create a SNCatalog based on GalDB, and having times of explosions
# overlapping the times in obsMetaData
cls.fnameList = cls._writeManySNCatalogs(cls.obsMetaDataResults)
t = time.time()
# Get opsim data.
opsdb = '/Users/lynnej/opsim/db/minion_1016_newsky.db'
generator = ObservationMetaDataGenerator(database=opsdb, driver='sqlite')
night = 203
query = 'select min(expMJD), max(expMJD) from summary where night=%d and filter="r"' % (
night)
res = generator.opsimdb.execute_arbitrary(query)
expMJD_min = res[0][0]
expMJD_max = res[0][1]
# Test image (deep, r band, near ecliptic)
obsMetaDataResults = generator.getObservationMetaData(expMJD=(expMJD_min,
expMJD_max),
boundLength=2.2)
dt, t = dtime(t)
print('To query opsim database: %f seconds' % (dt))
write_header = True
write_mode = 'w'
#ssmObj = NEOObj()
ssmObj = SolarSystemObj()
for obs in obsMetaDataResults:
#print obs.mjd, obs.unrefractedRA, obs.unrefractedDec, obs.bandpass, obs.boundType, obs.boundLength
mySsmDb = ssmCatCamera(ssmObj, obs_metadata=obs)
t = time.time()
# Get opsim data.
opsdb = '/Users/lynnej/opsim/db/enigma_1189_sqlite.db'
generator = ObservationMetaDataGenerator(database=opsdb, driver='sqlite')
night = 747
query = 'select min(expMJD), max(expMJD) from summary where night=%d' %(night)
res = generator.opsimdb.execute_arbitrary(query)
expMJD_min = res[0][0]
expMJD_max = res[0][1]
#obsMetaDataResults = generator.getObservationMetaData(expMJD=(expMJD_min, expMJD_max), boundLength=2.2)
# Test image (deep, r band, near ecliptic)
obsMetaDataResults = generator.getObservationMetaData(expMJD=50491.36028, boundLength=2.2)
dt, t = dtime(t)
print 'To query opsim database: %f seconds' %(dt)
write_header = True
write_mode = 'w'
#ssmObj = NEOObj()
ssmObj = SolarSystemObj()
for obs in obsMetaDataResults:
#print obs.mjd, obs.unrefractedRA, obs.unrefractedDec, obs.bandpass, obs.boundType, obs.boundLength
mySsmDb = ssmCatCamera(ssmObj, obs_metadata = obs)
#mySsmDb = ssmCat(ssmObj, obs_metadata = obs)
class ObservationMetaDataGeneratorTest(unittest.TestCase):
longMessage = True
@classmethod
def tearDownClass(cls):
sims_clean_up()
def setUp(self):
dbPath = os.path.join(getPackageDir('sims_data'),
'OpSimData/opsimblitz1_1133_sqlite.db')
self.gen = ObservationMetaDataGenerator(database=dbPath,
driver='sqlite')
def tearDown(self):
del self.gen
def testExceptions(self):
"""
Make sure that RuntimeErrors get raised when they should
"""
gen = self.gen
self.assertRaises(RuntimeError, gen.getObservationMetaData)
self.assertRaises(RuntimeError, gen.getObservationMetaData, fieldRA=(1.0, 2.0, 3.0))
def testQueryOnRanges(self):
"""
Test that ObservationMetaData objects returned by queries of the form
min < value < max
are, in fact, within that range.
Test when querying on both a single and two columns.
"""
gen = self.gen
# An list containing the bounds of our queries.
# The order of the tuples must correspond to the order of
# self.columnMapping in ObservationMetaDataGenerator.
# This was generated with a separate script which printed
# the median and maximum values of all of the quantities
# in our test opsim database
bounds = [('obsHistID', (5973, 7000)),
('fieldRA', (np.degrees(1.370916), np.degrees(1.40))),
('rawSeeing', (0.728562, 0.9)),
('seeing', (0.7, 0.9)),
('dist2Moon', (np.degrees(1.570307), np.degrees(1.9))),
('expMJD', (49367.129396, 49370.0)),
('m5', (22.815249, 23.0)),
('skyBrightness', (19.017605, 19.5))]
# test querying on a single column
for line in bounds:
tag = line[0]
args = {tag: line[1]}
results = gen.getObservationMetaData(**args)
msg = "failed querying on %s" % tag
self.assertGreater(len(results), 0, msg=msg)
for obs in results:
val = get_val_from_obs(tag, obs)
self.assertGreaterEqual(val, line[1][0], msg=msg)
self.assertLessEqual(val, line[1][1], msg=msg)
# test querying on two columns at once
for ix in range(len(bounds)):
tag1 = bounds[ix][0]
for jx in range(ix+1, len(bounds)):
tag2 = bounds[jx][0]
args = {}
args[tag1] = bounds[ix][1]
args[tag2] = bounds[jx][1]
results = gen.getObservationMetaData(**args)
msg = "failed querying %s and %s" % (tag1, tag2)
self.assertGreater(len(results), 0, msg=msg)
for obs in results:
v1 = get_val_from_obs(tag1, obs)
v2 = get_val_from_obs(tag2, obs)
self.assertGreaterEqual(v1, bounds[ix][1][0], msg=msg)
self.assertLessEqual(v1, bounds[ix][1][1], msg=msg)
self.assertGreaterEqual(v2, bounds[jx][1][0], msg=msg)
self.assertLessEqual(v2, bounds[jx][1][1], msg=msg)
def testOpSimQueryOnRanges(self):
"""
Test that getOpimRecords() returns correct results
"""
bounds = [('obsHistID', (5973, 7000)),
('fieldRA', (np.degrees(1.370916), np.degrees(1.40))),
('rawSeeing', (0.728562, 0.9)),
('seeing', (0.7, 0.9)),
('dist2Moon', (np.degrees(1.570307), np.degrees(1.9))),
('expMJD', (49367.129396, 49370.0)),
('m5', (22.815249, 23.0)),
('skyBrightness', (19.017605, 19.5))]
for line in bounds:
tag = line[0]
args = {tag: line[1]}
results = self.gen.getOpSimRecords(**args)
msg = 'failed querying %s ' % tag
self.assertGreater(len(results), 0)
for rec in results:
val = get_val_from_rec(tag, rec)
self.assertGreaterEqual(val, line[1][0], msg=msg)
self.assertLessEqual(val, line[1][1], msg=msg)
for ix in range(len(bounds)):
tag1 = bounds[ix][0]
for jx in range(ix+1, len(bounds)):
tag2 = bounds[jx][0]
args = {tag1: bounds[ix][1], tag2: bounds[jx][1]}
results = self.gen.getOpSimRecords(**args)
msg = 'failed while querying %s and %s' % (tag1, tag2)
self.assertGreater(len(results), 0)
for rec in results:
v1 = get_val_from_rec(tag1, rec)
v2 = get_val_from_rec(tag2, rec)
self.assertGreaterEqual(v1, bounds[ix][1][0], msg=msg)
self.assertLessEqual(v1, bounds[ix][1][1], msg=msg)
self.assertGreaterEqual(v2, bounds[jx][1][0], msg=msg)
self.assertLessEqual(v2, bounds[jx][1][1], msg=msg)
def testQueryExactValues(self):
"""
Test that ObservationMetaData returned by a query demanding an exact value do,
in fact, adhere to that requirement.
"""
gen = self.gen
bounds = [('obsHistID', 5973),
('expDate', 1220779),
('fieldRA', np.degrees(1.370916)),
('fieldDec', np.degrees(-0.456238)),
('moonRA', np.degrees(2.914132)),
('moonDec', np.degrees(0.06305)),
('rotSkyPos', np.degrees(3.116656)),
('telescopeFilter', 'i'),
('rawSeeing', 0.728562),
('seeing', 0.88911899999999999),
('sunAlt', np.degrees(-0.522905)),
('moonAlt', np.degrees(0.099096)),
('dist2Moon', np.degrees(1.570307)),
('moonPhase', 52.2325),
('expMJD', 49367.129396),
('visitExpTime', 30.0),
('m5', 22.815249),
('skyBrightness', 19.017605)]
for ii in range(len(bounds)):
tag = bounds[ii][0]
args = {}
args[tag] = bounds[ii][1]
results = gen.getObservationMetaData(**args)
msg = 'failed querying %s' % tag
self.assertGreater(len(results), 0, msg=msg)
for obs in results:
self.assertEqual(get_val_from_obs(tag, obs), bounds[ii][1], msg=msg)
def testOpSimQueryExact(self):
"""
Test that querying OpSim records for exact values works
"""
bounds = [('obsHistID', 5973),
('expDate', 1220779),
('fieldRA', np.degrees(1.370916)),
('fieldDec', np.degrees(-0.456238)),
('moonRA', np.degrees(2.914132)),
('moonDec', np.degrees(0.06305)),
('rotSkyPos', np.degrees(3.116656)),
('telescopeFilter', 'i'),
('rawSeeing', 0.728562),
('seeing', 0.88911899999999999),
('sunAlt', np.degrees(-0.522905)),
('moonAlt', np.degrees(0.099096)),
('dist2Moon', np.degrees(1.570307)),
('moonPhase', 52.2325),
('expMJD', 49367.129396),
('visitExpTime', 30.0),
('m5', 22.815249),
('skyBrightness', 19.017605)]
for line in bounds:
tag = line[0]
args = {tag: line[1]}
results = self.gen.getOpSimRecords(**args)
msg = 'failed while querying %s' % tag
self.assertGreater(len(results), 0, msg=msg)
for rec in results:
self.assertEqual(get_val_from_rec(tag, rec), line[1], msg=msg)
def testPassInOtherQuery(self):
"""
Test that you can pass OpSim pointings generated from another source
into an ObservationMetaDataGenerator and still get ObservationMetaData
out
"""
pointing_list = self.gen.getOpSimRecords(fieldRA=np.degrees(1.370916))
self.assertGreater(len(pointing_list), 1)
local_gen = ObservationMetaDataGenerator()
obs_list = local_gen.ObservationMetaDataFromPointingArray(pointing_list)
self.assertEqual(len(obs_list), len(pointing_list))
for pp in pointing_list:
obs = local_gen.ObservationMetaDataFromPointing(pp)
self.assertIsInstance(obs, ObservationMetaData)
def testQueryLimit(self):
"""
Test that, when we specify a limit on the number of ObservationMetaData we want returned,
that limit is respected
"""
gen = self.gen
results = gen.getObservationMetaData(fieldRA=(np.degrees(1.370916), np.degrees(1.5348635)),
limit=20)
self.assertEqual(len(results), 20)
def testQueryOnFilter(self):
"""
Test that queries on the filter work.
"""
gen = self.gen
results = gen.getObservationMetaData(fieldRA=np.degrees(1.370916), telescopeFilter='i')
ct = 0
for obs_metadata in results:
self.assertAlmostEqual(obs_metadata._pointingRA, 1.370916)
self.assertEqual(obs_metadata.bandpass, 'i')
ct += 1
# Make sure that more than zero ObservationMetaData were returned
self.assertGreater(ct, 0)
def testObsMetaDataBounds(self):
"""
Make sure that the bound specifications (i.e. a circle or a box on the
sky) are correctly passed through to the resulting ObservationMetaData
"""
gen = self.gen
# Test a cirlce with a specified radius
results = gen.getObservationMetaData(fieldRA=np.degrees(1.370916),
telescopeFilter='i',
boundLength=0.9)
ct = 0
for obs_metadata in results:
self.assertTrue(isinstance(obs_metadata.bounds, CircleBounds),
msg='obs_metadata.bounds is not an intance of '
'CircleBounds')
# include some wiggle room, in case ObservationMetaData needs to
# adjust the boundLength to accommodate the transformation between
# ICRS and observed coordinates
self.assertGreaterEqual(obs_metadata.bounds.radiusdeg, 0.9)
self.assertLessEqual(obs_metadata.bounds.radiusdeg, 0.95)
self.assertAlmostEqual(obs_metadata.bounds.RA,
np.radians(obs_metadata.pointingRA), 5)
self.assertAlmostEqual(obs_metadata.bounds.DEC,
np.radians(obs_metadata.pointingDec), 5)
ct += 1
# Make sure that some ObservationMetaData were tested
self.assertGreater(ct, 0)
boundLengthList = [1.2, (1.2, 0.6)]
for boundLength in boundLengthList:
results = gen.getObservationMetaData(fieldRA=np.degrees(1.370916),
telescopeFilter='i',
boundType='box',
boundLength=boundLength)
if hasattr(boundLength, '__len__'):
dra = boundLength[0]
ddec = boundLength[1]
else:
dra = boundLength
ddec = boundLength
ct = 0
for obs_metadata in results:
RAdeg = obs_metadata.pointingRA
DECdeg = obs_metadata.pointingDec
self.assertTrue(isinstance(obs_metadata.bounds, BoxBounds),
msg='obs_metadata.bounds is not an instance of '
'BoxBounds')
self.assertAlmostEqual(obs_metadata.bounds.RAminDeg, RAdeg-dra, 10)
self.assertAlmostEqual(obs_metadata.bounds.RAmaxDeg, RAdeg+dra, 10)
self.assertAlmostEqual(obs_metadata.bounds.DECminDeg, DECdeg-ddec, 10)
self.assertAlmostEqual(obs_metadata.bounds.DECmaxDeg, DECdeg+ddec, 10)
self.assertAlmostEqual(obs_metadata.bounds.RA, np.radians(obs_metadata.pointingRA), 5)
self.assertAlmostEqual(obs_metadata.bounds.DEC, np.radians(obs_metadata.pointingDec), 5)
ct += 1
# Make sure that some ObservationMetaData were tested
self.assertGreater(ct, 0)
def testQueryOnNight(self):
"""
Check that the ObservationMetaDataGenerator can query on the 'night'
column in the OpSim summary table
"""
# the test database goes from night=0 to night=28
# corresponding to 49353.032079 <= mjd <= 49381.38533
night0 = 49353.032079
results = self.gen.getObservationMetaData(night=(11, 13))
self.assertGreater(len(results), 1800)
# there should be about 700 observations a night;
# make sure we get at least 600
for obs in results:
self.assertGreaterEqual(obs.mjd.TAI, night0+11.0)
self.assertLessEqual(obs.mjd.TAI, night0+13.5)
# the 0.5 is there because the last observation on night 13 could be
# 13 days and 8 hours after the first observation on night 0
self.assertGreaterEqual(obs._OpsimMetaData['night'], 11)
self.assertLessEqual(obs._OpsimMetaData['night'], 13)
# query for an exact night
results = self.gen.getObservationMetaData(night=15)
self.assertGreater(len(results), 600)
# there should be about 700 observations a night;
# make sure we get at least 600
for obs in results:
self.assertEqual(obs._OpsimMetaData['night'], 15)
self.assertGreaterEqual(obs.mjd.TAI, night0+14.9)
self.assertLessEqual(obs.mjd.TAI, night0+15.9)
def testCreationOfPhoSimCatalog(self):
"""
Make sure that we can create PhoSim input catalogs using the returned
ObservationMetaData. This test will just make sure that all of the
expected header entries are there.
"""
dbName = tempfile.mktemp(dir=ROOT, prefix='obsMetaDataGeneratorTest-', suffix='.db')
makePhoSimTestDB(filename=dbName)
bulgeDB = testGalaxyBulgeDBObj(driver='sqlite', database=dbName)
gen = self.gen
results = gen.getObservationMetaData(fieldRA=np.degrees(1.370916),
telescopeFilter='i')
testCat = PhoSimCatalogSersic2D(bulgeDB, obs_metadata=results[0])
testCat.phoSimHeaderMap = {}
with lsst.utils.tests.getTempFilePath('.txt') as catName:
testCat.write_catalog(catName)
if os.path.exists(dbName):
os.unlink(dbName)
def testCreationOfPhoSimCatalog_2(self):
"""
Make sure that we can create PhoSim input catalogs using the returned
ObservationMetaData.
Use the actual DefaultPhoSimHeader map; make sure that opsim_version
does not make it into the header.
"""
dbName = tempfile.mktemp(dir=ROOT, prefix='obsMetaDataGeneratorTest-', suffix='.db')
makePhoSimTestDB(filename=dbName)
bulgeDB = testGalaxyBulgeDBObj(driver='sqlite', database=dbName)
gen = self.gen
results = gen.getObservationMetaData(fieldRA=np.degrees(1.370916),
telescopeFilter='i')
testCat = PhoSimCatalogSersic2D(bulgeDB, obs_metadata=results[0])
testCat.phoSimHeaderMap = DefaultPhoSimHeaderMap
with lsst.utils.tests.getTempFilePath('.txt') as catName:
testCat.write_catalog(catName)
ct_lines = 0
with open(catName, 'r') as in_file:
for line in in_file:
ct_lines += 1
self.assertNotIn('opsim_version', line)
self.assertGreater(ct_lines, 10) # check that some lines did get written
if os.path.exists(dbName):
os.unlink(dbName)
def testCreationOfPhoSimCatalog_3(self):
"""
Make sure that we can create PhoSim input catalogs using the returned
ObservationMetaData.
Test that an error is actually raised if we try to build a PhoSim catalog
with a v3 header map using a v4 ObservationMetaData
"""
dbName = tempfile.mktemp(dir=ROOT, prefix='obsMetaDataGeneratorTest-', suffix='.db')
makePhoSimTestDB(filename=dbName)
bulgeDB = testGalaxyBulgeDBObj(driver='sqlite', database=dbName)
opsim_db = os.path.join(getPackageDir('sims_data'), 'OpSimData',
'astro-lsst-01_2014.db')
assert os.path.isfile(opsim_db)
gen = ObservationMetaDataGenerator(opsim_db, driver='sqlite')
results = gen.getObservationMetaData(fieldRA=(70.0, 85.0),
telescopeFilter='i')
self.assertGreater(len(results), 0)
testCat = PhoSimCatalogSersic2D(bulgeDB, obs_metadata=results[0])
testCat.phoSimHeaderMap = DefaultPhoSimHeaderMap
with lsst.utils.tests.getTempFilePath('.txt') as catName:
with self.assertRaises(RuntimeError):
testCat.write_catalog(catName)
if os.path.exists(dbName):
os.unlink(dbName)
SearchRegionDec = (-30.0, -20.0)
SearchAirmass = (1.0, 1.5)
DesiredFilter = None
import eups
import os
from lsst.sims.catUtils.utils import ObservationMetaDataGenerator
from lsst.sims.catalogs.generation.db import ObservationMetaData
#help(ObservationMetaDataGenerator)
opsimdb = os.path.join(eups.productDir('sims_data'), 'OpSimData',
'enigma_1189_sqlite.db')
gen = ObservationMetaDataGenerator(driver='sqlite', database=opsimdb)
SimObData = gen.getObservationMetaData(boundType=AperatureType,
boundLength=AperatureRadius,
fieldRA=SearchRegionRA,
fieldDec=SearchRegionDec,
airmass=SearchAirmass,
telescopeFilter=DesiredFilter)
NumOfObservations = len(SimObData)
#print SimsObData[0].__dict__
from prettytable import PrettyTable
UniquePointings = list({(o.unrefractedRA, o.unrefractedDec)
for o in SimObData})
NumOfPointings = len(UniquePointings)
print 'Number of Unique Pointings:', NumOfPointings, '\n'
table2 = PrettyTable(["Pointing RA", "Pointing Dec"])
for x in UniquePointings:
table2.add_row([x[0], x[1]])
print table2
def test_multiband_light_curves(self):
"""
Check that multi-band light curves are returned correctly.
"""
raRange = (78.0, 82.0)
decRange = (-69.0, -65.0)
bandpass = ('r', 'g')
gen = AgnLightCurveGenerator(self.agn_db, self.opsimDb)
pointings = gen.get_pointings(raRange, decRange, bandpass=bandpass)
for row in pointings:
for obs in row:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI - 49000.0 + 59580.0)
obs.mjd = mjd
lc_dict, truth_info = gen.light_curves_from_pointings(pointings)
self.assertGreater(len(lc_dict), 2)
obs_gen = ObservationMetaDataGenerator(database=self.opsimDb,
driver='sqlite')
control_pointings_r = obs_gen.getObservationMetaData(
fieldRA=raRange,
fieldDec=decRange,
telescopeFilter='r',
boundLength=1.75)
for obs in control_pointings_r:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI - 49000.0 + 59580.0)
obs.mjd = mjd
control_pointings_g = obs_gen.getObservationMetaData(
fieldRA=raRange,
fieldDec=decRange,
telescopeFilter='g',
boundLength=1.75)
for obs in control_pointings_g:
mjd = ModifiedJulianDate(TAI=obs.mjd.TAI - 49000.0 + 59580.0)
obs.mjd = mjd
self.assertGreater(len(control_pointings_g), 0)
self.assertGreater(len(control_pointings_r), 0)
ct = 0
for obs in control_pointings_r:
cat = agnControlCatalog(self.agn_db, obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = lc_dict[star_obj[0]]['r']
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex] - star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - star_obj[4]), 1.0e-7)
for obs in control_pointings_g:
cat = agnControlCatalog(self.agn_db, obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = lc_dict[star_obj[0]]['g']
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex] - star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - star_obj[4]), 1.0e-7)
# Verify that the catalogs and LightCurveGenerator returned the
# same number of observations
total_ct = 0
for obj_name in lc_dict:
for band in lc_dict[obj_name]:
total_ct += len(lc_dict[obj_name][band]['mjd'])
self.assertEqual(ct, total_ct)
def setUpClass(cls):
# Set directory where scratch work will be done
cls.madeScratchDir = False
cls.scratchDir = 'scratchSpace'
# Setup a directory in which test data will be made
if not os.path.exists(cls.scratchDir):
os.makedirs(cls.scratchDir)
cls.madeScratchDir = True
# ObsMetaData instance with spatial window within which we will
# put galaxies in a fake galaxy catalog
cls.obsMetaDataforCat = ObservationMetaData(boundType='circle',
boundLength=np.degrees(0.25),
pointingRA=np.degrees(0.13),
pointingDec=np.degrees(-1.2),
bandpassName=['r'], mjd=49350.)
# Randomly generate self.size Galaxy positions within the spatial window
# of obsMetaDataforCat
cls.dbname = os.path.join(cls.scratchDir, 'galcat.db')
cls.size = 1000
cls.GalaxyPositionSamps = sample_obsmetadata(
obsmetadata=cls.obsMetaDataforCat, size=cls.size)
# Create a galaxy Table overlapping with the obsMetaData Spatial Bounds
# using positions from the samples above and a database name given by
# self.dbname
vals = cls._createFakeGalaxyDB()
with open('valsFromTest.dat', 'w') as f:
for i, v in enumerate(vals[0]):
f.write(str(np.radians(vals[0][i])) + ' ' + str(np.radians(vals[1][i])) + '\n')
# fig, ax = plt.subplots()
# ax.plot(vals[0][:1000], vals[1][: 1000], '.')
# ax.plot([0.13], [-1.2], 'rs', markersize=8)
# fig.savefig(os.path.join(cls.scratchDir, 'match_galDBPosns.pdf'))
# Read it into a CatalogDBObject galDB
class MyGalaxyCatalog(CatalogDBObject):
'''
Create a like CatalogDBObject connecting to a local sqlite database
'''
objid = 'mytestgals'
tableid = 'gals'
idColKey = 'id'
objectTypeId = 0
appendint = 10000
database = cls.dbname
# dbAddress = './testData/galcat.db'
raColName = 'raJ2000'
decColName = 'decJ2000'
driver = 'sqlite'
# columns required to convert the ra, dec values in degrees
# to radians again
columns = [('id', 'id', int),
('raJ2000','raJ2000 * PI()/ 180. '),
('decJ2000','decJ2000 * PI()/ 180.'),
('redshift', 'redshift')]
# class galCopy(InstanceCatalog):
# column_outputs = ['id', 'raJ2000', 'decJ2000', 'redshift']
# override_formats = {'raJ2000': '%8e', 'decJ2000': '%8e'}
cls.galDB = MyGalaxyCatalog(database=cls.dbname)
# cls.galphot = galCopy(db_obj=cls.galDB,
# obs_metadata=cls.obsMetaDataforCat)
# cls.galPhotFname = os.path.join(cls.scratchDir, 'gals.dat')
# cls.galphot.write_catalog(cls.galPhotFname)
# Generate a set of Observation MetaData Outputs that overlap
# the galaxies in space
opsimPath = os.path.join(eups.productDir('sims_data'),'OpSimData')
opsimDB = os.path.join(opsimPath,'opsimblitz1_1133_sqlite.db')
generator = ObservationMetaDataGenerator()
cls.obsMetaDataResults = generator.getObservationMetaData(limit=100,
fieldRA=(5.0, 8.0),
fieldDec=(-85.,-60.),
expMJD=(49300., 49400.),
boundLength=0.15,
boundType='circle')
# cls.obsMetaDataResults has obsMetaData corresponding to 15 pointings
# This is tested in test_obsMetaDataGeneration
# v = zip(*map(cls.coords, cls.obsMetaDataResults))
# fig2, ax2 = plt.subplots()
# ax2.plot(vals[0][:1000], vals[1][: 1000], '.')
# ax2.plot(v[0], v[1], 'ko', markersize=8)
# ax2.axhline(-np.pi, color='k', lw=2)
# ax2.axhline(np.pi, color='k', lw=2)
# ax2.axvline(0., color='k', lw=2.)
# ax2.axvline(2. * np.pi, color='k', lw=2.)
# fig2.savefig(os.path.join(cls.scratchDir, 'matchPointings.pdf'))
#print 'cls.obsMetaDataforCat'
#print cls.obsMetaDataforCat.summary
#print 'obsMetaDataResults'
# obsMetaDataList = []
# for obsMetaData in tmpobsMetaDataResults:
# obsMetaDataList.append(ObservationMetaData(boundType='circle',
# boundLength=np.degrees(0.05),
# unrefractedRA=np.degrees(0.13),
# unrefractedDec=np.degrees(-1.2),
# bandpassName=obsMetaData.bandpass,
# mjd=obsMetaData.mjd))
# cls.obsMetaDataResults = tmpobsMetaDataResults# pobsMetaDataList
# self.catalogList = self._writeManySNCatalogs()
sncatalog = SNIaCatalog(db_obj=cls.galDB,
obs_metadata=cls.obsMetaDataResults[12],
column_outputs=['t0', 'flux_u', 'flux_g', \
'flux_r', 'flux_i', 'flux_z',\
'flux_y', 'mag_u', 'mag_g',\
'mag_r', 'mag_i', 'mag_z', \
'mag_y', 'adu_u', 'adu_g',\
'adu_r', 'adu_i', 'adu_z', \
'adu_y','mwebv'])
sncatalog.suppressDimSN = True
sncatalog.midSurveyTime = sncatalog.mjdobs - 20.
sncatalog.snFrequency = 1.0
cls.fullCatalog = cls.scratchDir + '/testSNCatalogTest.dat'
sncatalog.write_catalog(cls.fullCatalog)
# Create a SNCatalog based on GalDB, and having times of explosions
# overlapping the times in obsMetaData
cls.fnameList = cls._writeManySNCatalogs(cls.obsMetaDataResults)
def testQueryOnRanges(self):
"""
Test that ObservationMetaData objects returned by queries of the form
min < value < max
are, in fact, within that range.
Test when querying on both a single and two columns.
"""
gen = ObservationMetaDataGenerator()
#An list containing the bounds of our queries.
#The order of the tuples must correspond to the order of
#self.columnMapping in ObservationMetaDataGenerator.
#This was generated with a separate script which printed
#the median and maximum values of all of the quantities
#in our test opsim database
bounds = [
('obsHistID',(5973, 11080)),
('expDate',(1220779, 1831593)),
('fieldRA',(numpy.degrees(1.370916), numpy.degrees(1.5348635))),
('fieldDec',(numpy.degrees(-0.456238), numpy.degrees(0.0597905))),
('moonRA',(numpy.degrees(2.914132), numpy.degrees(4.5716525))),
('moonDec',(numpy.degrees(0.06305), numpy.degrees(0.2216745))),
('rotSkyPos',(numpy.degrees(3.116656), numpy.degrees(4.6974265))),
('telescopeFilter',('i','i')),
('rawSeeing',(0.728562, 1.040495)),
('seeing', (0.7, 0.9)),
('sunAlt',(numpy.degrees(-0.522905), numpy.degrees(-0.366073))),
('moonAlt',(numpy.degrees(0.099096), numpy.degrees(0.5495415))),
('dist2Moon',(numpy.degrees(1.570307), numpy.degrees(2.347868))),
('moonPhase',(52.2325, 76.0149785)),
('expMJD',(49367.129396, 49374.1990025)),
('altitude',(numpy.degrees(0.781015), numpy.degrees(1.1433785))),
('azimuth',(numpy.degrees(3.470077), numpy.degrees(4.8765995))),
('visitExpTime',(30.0,30.0)),
('airmass',(1.420459, 2.0048075)),
('m5',(22.815249, 24.0047695)),
('skyBrightness',(19.017605, 20.512553))]
#test querying on a single column
for (ii,line) in enumerate(bounds):
tag = line[0]
if tag != 'telescopeFilter' and tag != 'visitExpTime':
args = {}
args[tag] = line[1]
results = gen.getObservationMetaData(**args)
if tag == 'skyBrightness':
ct = 0
for obs_metadata in results:
self.assertTrue(obs_metadata.skyBrightness<line[1][1])
self.assertTrue(obs_metadata.skyBrightness>line[1][0])
ct += 1
self.assertTrue(ct>0)
elif tag == 'm5':
ct = 0
for obs_metadata in results:
self.assertTrue(obs_metadata.m5[obs_metadata.bandpass]<line[1][1])
self.assertTrue(obs_metadata.m5[obs_metadata.bandpass]>line[1][0])
ct += 1
self.assertTrue(ct>0)
name = gen.columnMapping[ii][2]
if name is not None:
if gen.columnMapping[ii][4] is not None:
xmin = gen.columnMapping[ii][4](line[1][0])
xmax = gen.columnMapping[ii][4](line[1][1])
else:
xmin = line[1][0]
xmax = line[1][1]
ct = 0
for obs_metadata in results:
ct += 1
self.assertTrue(obs_metadata.phoSimMetaData[name][0]<xmax)
self.assertTrue(obs_metadata.phoSimMetaData[name][0]>xmin)
#make sure that we did not accidentally choose values such that
#no ObservationMetaData were ever returned
self.assertTrue(ct>0)
#test querying on two columns at once
ct = 0
for ii in range(len(bounds)):
tag1 = bounds[ii][0]
if tag1 != 'telescopeFilter' and tag1 != 'visitExpTime':
name1 = gen.columnMapping[ii][2]
if gen.columnMapping[ii][4] is not None:
xmin = gen.columnMapping[ii][4](bounds[ii][1][0])
xmax = gen.columnMapping[ii][4](bounds[ii][1][1])
else:
xmin = bounds[ii][1][0]
xmax = bounds[ii][1][1]
for jj in range(ii+1, len(bounds)):
tag2 = bounds[jj][0]
if tag2 != 'telescopeFilter' and tag2 != 'visitExpTime':
name2 = gen.columnMapping[jj][2]
if gen.columnMapping[jj][4] is not None:
ymin = gen.columnMapping[jj][4](bounds[jj][1][0])
ymax = gen.columnMapping[jj][4](bounds[jj][1][1])
else:
ymin = bounds[jj][1][0]
ymax = bounds[jj][1][1]
args = {}
args[tag1] = bounds[ii][1]
args[tag2] = bounds[jj][1]
results = gen.getObservationMetaData(**args)
if name1 is not None or name2 is not None:
for obs_metadata in results:
ct += 1
if name1 is not None:
self.assertTrue(obs_metadata.phoSimMetaData[name1][0]>xmin)
self.assertTrue(obs_metadata.phoSimMetaData[name1][0]<xmax)
if name2 is not None:
self.assertTrue(obs_metadata.phoSimMetaData[name2][0]>ymin)
self.assertTrue(obs_metadata.phoSimMetaData[name2][0]<ymax)
#Make sure that we didn't choose values such that no ObservationMetaData were
#ever returned
self.assertTrue(ct>0)
def test_ssm_catalog_creation(self):
t = time.time()
# Fake opsim data.
database = os.path.join(getPackageDir('SIMS_DATA'),
'OpSimData/opsimblitz1_1133_sqlite.db')
generator = ObservationMetaDataGenerator(database=database,
driver='sqlite')
night = 20
query = 'select min(expMJD), max(expMJD) from summary where night=%d' % (
night)
res = generator.opsimdb.execute_arbitrary(query)
expMJD_min = res[0][0]
expMJD_max = res[0][1]
obsMetaDataResults = generator.getObservationMetaData(
expMJD=(expMJD_min, expMJD_max), limit=3, boundLength=2.2)
dt, t = dtime(t)
print('To query opsim database: %f seconds' % (dt))
write_header = True
write_mode = 'w'
try:
ssmObj = SolarSystemObj()
for obsMeta in obsMetaDataResults:
# But moving objects databases are not currently complete for all years.
# Push forward to night=747.
# (note that we need the phosim dictionary as well)
newMJD = 59590.2 # this MJD is artificially chosen to be in the
# time span of the new baseline simulated survey
obs = ObservationMetaData(
mjd=newMJD,
pointingRA=obsMeta.pointingRA,
pointingDec=obsMeta.pointingDec,
bandpassName=obsMeta.bandpass,
rotSkyPos=obsMeta.rotSkyPos,
m5=obsMeta.m5[obsMeta.bandpass],
seeing=obsMeta.seeing[obsMeta.bandpass],
boundLength=obsMeta.boundLength,
boundType=obsMeta.boundType)
obs._OpsimMetaData = {'visitExpTime': 30}
mySsmDb = ssmCatCamera(ssmObj, obs_metadata=obs)
photParams = PhotometricParameters(
exptime=obs.OpsimMetaData['visitExpTime'],
nexp=1,
bandpass=obs.bandpass)
mySsmDb.photParams = photParams
try:
with lsst.utils.tests.getTempFilePath(
'.txt') as output_cat:
mySsmDb.write_catalog(output_cat,
write_header=write_header,
write_mode=write_mode)
# verify that we did not write an empty catalog
with open(output_cat, 'r') as input_file:
lines = input_file.readlines()
msg = 'MJD is %.3f' % obs.mjd.TAI
self.assertGreater(len(lines), 1, msg=msg)
except:
# This is because the solar system object 'tables'
# don't actually connect to tables on fatboy; they just
# call methods stored on fatboy. Therefore, the connection
# failure will not be noticed until this part of the test
msg = sys.exc_info()[1].args[0]
if 'DB-Lib error' in msg:
reassure()
continue
else:
raise
write_mode = 'a'
write_header = False
dt, t = dtime(t)
print(
'To query solar system objects: %f seconds (obs MJD time %f)'
% (dt, obs.mjd.TAI))
except:
trace = traceback.extract_tb(sys.exc_info()[2], limit=20)
msg = sys.exc_info()[1].args[0]
if 'Failed to connect' in msg or failedOnFatboy(trace):
# if the exception was because of a failed connection
# to fatboy, ignore it.
reassure()
pass
else:
raise
if args.log_file is not None:
if os.path.exists(args.log_file):
raise RuntimeError("%s already exists" % args.log_file)
if os.path.exists(args.out_dir):
if not os.path.isdir(args.out_dir):
raise RuntimeError("%s is not a directory" % args.out_dir)
if not os.path.exists(args.out_dir):
os.mkdir(args.out_dir)
t_start = time.time()
# get list of ObservationMetaData to simulate
obs_gen = ObservationMetaDataGenerator(args.opsim_db, driver='sqlite')
obs_list = obs_gen.getObservationMetaData(night=15)
del obs_gen
sims_clean_up()
print('%d obs' % len(obs_list))
# use AlertDataGenerator to separate the ObservationMetaData
# by htmid
alert_gen = AlertDataGenerator()
alert_gen.subdivide_obs(obs_list, htmid_level=6)
# Create a dict that maps an obsHistID to the list of htmids
# of the trixels overlapping that observation
#
# Also separate list of obsHistIDs into n_proc
camera = lsst_camera()
det_name_list = []
for det in camera:
if det.getType() != SCIENCE:
continue
det_name_list.append(det.getName())
det_name_list.sort()
opsimdb = os.path.join('/Users', 'danielsf', 'physics', 'lsst_150412',
'Development', 'garage', 'OpSimData',
'minion_1016_sqlite.db')
assert os.path.exists(opsimdb)
obs_gen = ObservationMetaDataGenerator(database=opsimdb)
obs_list = obs_gen.getObservationMetaData(obsHistID=args.obs)
obs = obs_list[0]
filter_name = obs.bandpass
site_no_atm = Site(name="LSST", pressure=0.0, humidity=0.0)
obs.site = site_no_atm
assert np.abs(obs.site.pressure) < 1.0e-6
assert np.abs(obs.site.humidity) < 1.0e-6
xpix_0 = np.arange(200.0, 3800.0, 1000.0)
ypix_0 = np.arange(200.0, 3800.0, 1000.0)
pix_grid = np.meshgrid(xpix_0, ypix_0)
cam_xpix_in = pix_grid[0].flatten()
cam_ypix_in = pix_grid[1].flatten()
camera_wrapper = LSSTCameraWrapper()
'lsst_r', 'lsst_i', 'starnotgal',
'isvariable']
default_columns = [('isresolved', 0, int), ('isvariable', 0, int)]
default_formats = {'S': '%s', 'f': '%.8f', 'i': '%i'}
transformations = {'raJ2000': numpy.degrees, 'decJ2000': numpy.degrees}
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Generate the reference catalog')
parser.add_argument('opsimDB', help='OpSim database sqlite file')
parser.add_argument('-o', '--outfile', type=str, default='twinkles_ref.txt',
help='Filename of output reference catalog')
args = parser.parse_args()
# you need to provide ObservationMetaDataGenerator with the connection
# string to an OpSim output database. This is the connection string
# to a test database that comes when you install CatSim.
generator = ObservationMetaDataGenerator(database=args.opsimDB,
driver='sqlite')
obsMetaDataResults = generator.getObservationMetaData(fieldRA=(53, 54), fieldDec=(-29, -27), boundLength=0.3)
# First get the reference catalog
stars = CatalogDBObject.from_objid('allstars')
while True:
try:
ref_stars = TwinklesReference(stars, obs_metadata=obsMetaDataResults[0])
break
except RuntimeError:
continue
ref_stars.write_catalog(args.outfile, write_mode='w', write_header=True,
chunk_size=20000)
from lsst.sims.utils import raDecFromPupilCoords
from lsst.sims.utils import angularSeparation
from lsst.sims.utils import Site
from lsst.sims.photUtils import BandpassDict, Sed
from lsst.sims.utils import altAzPaFromRaDec
from lsst.sims.utils import ObservationMetaData
bp_dict, hw_dict = BandpassDict.loadBandpassesFromFiles()
opsimdb = os.path.join('/Users/danielsf/physics/lsst_150412',
'Development', 'garage', 'OpSimData',
'minion_1016_sqlite.db')
obs_gen = ObservationMetaDataGenerator(opsimdb)
obs_list = obs_gen.getObservationMetaData(moonAlt=(-90.0, -50.0),
altitude=(55.0, 57.0),
fieldDec=(-10.0, 10.0))
assert len(obs_list) > 0
obs_root = obs_list[0]
obs_root.site = Site(name='LSST', pressure=0.0, humidity=0.0)
phosim_header = DefaultPhoSimHeaderMap
phosim_header['nsnap'] = 1
phosim_header['vistime'] = 30.0
galaxy_dir = os.path.join(getPackageDir('sims_sed_library'), 'galaxySED')
galaxy_sed_list = os.listdir(galaxy_dir)
def setUpClass(cls):
print('setting up %s' % sims_clean_up.targets)
# These represent the dimmest magnitudes at which objects
# are considered visible in each of the LSST filters
# (taken from Table 2 of the overview paper)
cls.obs_mag_cutoff = (23.68, 24.89, 24.43, 24.0, 24.45, 22.60)
cls.opsim_db = os.path.join(getPackageDir('sims_data'),
'OpSimData',
'opsimblitz1_1133_sqlite.db')
rng = np.random.RandomState(8123)
obs_gen = ObservationMetaDataGenerator(database=cls.opsim_db)
cls.obs_list = obs_gen.getObservationMetaData(night=(0, 2))
cls.obs_list = rng.choice(cls.obs_list, 10, replace=False)
fieldid_list = []
for obs in cls.obs_list:
fieldid_list.append(obs.OpsimMetaData['fieldID'])
# make sure we have selected observations such that the
# same field is revisited more than once
assert len(np.unique(fieldid_list)) < len(fieldid_list)
cls.input_dir = tempfile.mkdtemp(prefix='alertDataGen',
dir=ROOT)
cls.star_db_name = tempfile.mktemp(prefix='alertDataGen_star_db',
dir=cls.input_dir,
suffix='.db')
conn = sqlite3.connect(cls.star_db_name)
cursor = conn.cursor()
cursor.execute('''CREATE TABLE stars
(simobjid int, htmid int, ra real, dec real,
umag real, gmag real, rmag real,
imag real, zmag real, ymag real,
px real, pmra real, pmdec real,
vrad real, varParamStr text)''')
conn.commit()
n_stars = 10
cls.ra_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.dec_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
u_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
g_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
r_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
i_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
z_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
y_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.px_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.pmra_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.pmdec_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.vrad_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.amp_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.period_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
id_offset = -n_stars
for obs in cls.obs_list:
id_offset += n_stars
ra_0 = obs.pointingRA
dec_0 = obs.pointingDec
rr = rng.random_sample(n_stars)
theta = rng.random_sample(n_stars)*2.0*np.pi
ra = ra_0 + rr*np.cos(theta)
dec = dec_0 + rr*np.sin(theta)
var_period = rng.random_sample(n_stars)*0.25
var_amp = rng.random_sample(n_stars)*1.0 + 0.01
subset = rng.randint(0, high=len(var_amp)-1, size=3)
var_amp[subset[:2]] = 0.0
var_amp[subset[-1]] = -1.0
umag = rng.random_sample(n_stars)*5.0 + 15.0
gmag = rng.random_sample(n_stars)*5.0 + 15.0
rmag = rng.random_sample(n_stars)*5.0 + 15.0
imag = rng.random_sample(n_stars)*5.0 + 15.0
zmag = rng.random_sample(n_stars)*5.0 + 15.0
ymag = rng.random_sample(n_stars)*5.0 + 15.0
px = rng.random_sample(n_stars)*0.1 # say it is arcsec
pmra = rng.random_sample(n_stars)*50.0+100.0 # say it is arcsec/yr
pmdec = rng.random_sample(n_stars)*50.0+100.0 # say it is arcsec/yr
vrad = rng.random_sample(n_stars)*600.0 - 300.0
subset = rng.randint(0, high=n_stars-1, size=3)
umag[subset] = 40.0
gmag[subset] = 40.0
rmag[subset] = 40.0
imag[subset] = 40.0
zmag[subset] = 40.0
ymag[subset] = 40.0
cls.ra_truth[id_offset:id_offset+n_stars] = np.round(ra, decimals=6)
cls.dec_truth[id_offset:id_offset+n_stars] = np.round(dec, decimals=6)
u_truth[id_offset:id_offset+n_stars] = np.round(umag, decimals=4)
g_truth[id_offset:id_offset+n_stars] = np.round(gmag, decimals=4)
r_truth[id_offset:id_offset+n_stars] = np.round(rmag, decimals=4)
i_truth[id_offset:id_offset+n_stars] = np.round(imag, decimals=4)
z_truth[id_offset:id_offset+n_stars] = np.round(zmag, decimals=4)
y_truth[id_offset:id_offset+n_stars] = np.round(ymag, decimals=4)
cls.px_truth[id_offset:id_offset+n_stars] = np.round(px, decimals=4)
cls.pmra_truth[id_offset:id_offset+n_stars] = np.round(pmra, decimals=4)
cls.pmdec_truth[id_offset:id_offset+n_stars] = np.round(pmdec, decimals=4)
cls.vrad_truth[id_offset:id_offset+n_stars] = np.round(vrad, decimals=4)
cls.amp_truth[id_offset:id_offset+n_stars] = np.round(var_amp, decimals=4)
cls.period_truth[id_offset:id_offset+n_stars] = np.round(var_period, decimals=4)
cls.max_str_len = -1
for i_star in range(n_stars):
if var_amp[i_star] >= -0.1:
varParamStr = ('{"m":"alert_test", "p":{"amp":%.4f, "per": %.4f}}'
% (var_amp[i_star], var_period[i_star]))
else:
varParamStr = 'None'
if len(varParamStr) > cls.max_str_len:
cls.max_str_len = len(varParamStr)
htmid = findHtmid(ra[i_star], dec[i_star], 21)
query = ('''INSERT INTO stars VALUES(%d, %d, %.6f, %.6f,
%.4f, %.4f, %.4f, %.4f, %.4f, %.4f,
%.4f, %.4f, %.4f, %.4f, '%s')'''
% (i_star+id_offset+1, htmid, ra[i_star], dec[i_star],
umag[i_star], gmag[i_star], rmag[i_star],
imag[i_star], zmag[i_star], ymag[i_star],
px[i_star], pmra[i_star], pmdec[i_star],
vrad[i_star], varParamStr))
cursor.execute(query)
conn.commit()
conn.close()
cls.output_dir = tempfile.mkdtemp(dir=ROOT, prefix='alert_gen_output')
cls.mag0_truth_dict = {}
cls.mag0_truth_dict[0] = u_truth
cls.mag0_truth_dict[1] = g_truth
cls.mag0_truth_dict[2] = r_truth
cls.mag0_truth_dict[3] = i_truth
cls.mag0_truth_dict[4] = z_truth
cls.mag0_truth_dict[5] = y_truth
def test_date_range(self):
"""
Run test_stellar_light_curves, this time specifying a range in MJD.
"""
raRange = (0.0, 110.0)
decRange = (-90.0, -50.0)
bandpass = '******'
mjdRange = (49356.0, 49357.0)
lc_gen = StellarLightCurveGenerator(self.stellar_db, self.opsimDb)
pointings = lc_gen.get_pointings(raRange,
decRange,
bandpass=bandpass,
expMJD=mjdRange)
test_light_curves, truth_info = lc_gen.light_curves_from_pointings(
pointings)
self.assertGreater(len(test_light_curves), 2)
for unique_id in test_light_curves:
# verify that the sources returned all do vary by making sure that the
# np.diff run on the magnitudes reutrns something non-zero
self.assertGreater(
np.abs(np.diff(
test_light_curves[unique_id][bandpass]['mag'])).max(), 0.0)
self.assertGreater(
len(test_light_curves[unique_id][bandpass]['mjd']), 0)
self.assertGreater(
test_light_curves[unique_id][bandpass]['mjd'].min(),
mjdRange[0] - 1.0e-12)
self.assertLess(
test_light_curves[unique_id][bandpass]['mjd'].max(),
mjdRange[1] + 1.0e-12)
# Now test that specifying a small chunk_size does not change the output
# light curves
chunk_light_curves, truth_info = lc_gen.light_curves_from_pointings(
pointings, chunk_size=1)
self.assertGreater(len(chunk_light_curves), 2)
for unique_id in test_light_curves:
self.assertEqual(
len(test_light_curves[unique_id][bandpass]['mjd']),
len(chunk_light_curves[unique_id][bandpass]['mjd']))
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['mjd'],
chunk_light_curves[unique_id][bandpass]['mjd'])
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['mag'],
chunk_light_curves[unique_id][bandpass]['mag'])
np.testing.assert_array_equal(
test_light_curves[unique_id][bandpass]['error'],
chunk_light_curves[unique_id][bandpass]['error'])
# Now find all of the ObservationMetaData that were included in our
# light curves, generate InstanceCatalogs from them separately,
# and verify that the contents of the InstanceCatalogs agree with
# the contents of the light curves.
gen = ObservationMetaDataGenerator(database=self.opsimDb,
driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=raRange,
fieldDec=decRange,
telescopeFilter=bandpass,
expMJD=mjdRange,
boundLength=1.75)
ct = 0
for obs in obs_list:
cat = stellarControlCatalog(self.stellar_db, obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = test_light_curves[star_obj[0]][bandpass]
dex = np.argmin(np.abs(lc['mjd'] - obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex] - obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex] - star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex] - star_obj[4]), 1.0e-7)
# Verify that the same number of objects and observations were found in the
# catalogs and the LightCurveGenerator output
total_ct = 0
for obj_name in test_light_curves:
for bandpass in test_light_curves[obj_name]:
total_ct += len(test_light_curves[obj_name][bandpass]['mjd'])
self.assertEqual(ct, total_ct)
def generatePhosimInput(mode='a', runobsHistID=None):
if mode == 'a':
filewrite = 'append'
elif mode == 'c':
filewrite = 'clobber'
opsimDB = os.path.join('.','kraken_1042_sqlite.db')
logfilename = 'run.log'
if os.path.isfile(logfilename):
if filewrite =='append':
pass
elif filewrite == 'clobber':
with open('run.log', 'w') as f:
f.write('obsHistID,status,timestamp\n')
else:
print('file exists and mode uncertain')
exit()
else:
with open('run.log', 'w') as f:
f.write('obsHistID,status,time\n')
#you need to provide ObservationMetaDataGenerator with the connection
#string to an OpSim output database. This is the connection string
#to a test database that comes when you install CatSim.
generator = ObservationMetaDataGenerator(database=opsimDB, driver='sqlite')
obsHistIDList = numpy.genfromtxt('FirstSet_obsHistIDs.csv', delimiter=',', usecols=0)
obsMetaDataResults = []
# Change the slicing in this line for the range of visits
for obsHistID in obsHistIDList[600:700]:
if runobsHistID is not None:
obsHistID = runobsHistID
obsMetaDataResults.append(generator.getObservationMetaData(obsHistID=obsHistID,
fieldRA=(53, 54), fieldDec=(-29, -27),
boundLength=0.3)[0])
starObjNames = ['msstars', 'bhbstars', 'wdstars', 'rrlystars', 'cepheidstars']
snmodel = SNObj()
for obs_metadata in obsMetaDataResults:
filename = "InstanceCatalogs / phosim_input_%s.txt" \
%(obs_metadata.phoSimMetaData['Opsim_obshistid'][0])
obs_metadata.phoSimMetaData['SIM_NSNAP'] = (1, numpy.dtype(int))
obs_metadata.phoSimMetaData['SIM_VISTIME'] = (30, numpy.dtype(float))
print('Starting Visit: ',
obs_metadata.phoSimMetaData['Opsim_obshistid'][0])
compoundStarDBList = [MsStarObj, BhbStarObj, WdStarObj, RRLyStarObj,
CepheidStarObj]
compoundGalDBList = [GalaxyBulgeObj, GalaxyDiskObj, GalaxyAgnObj]
compoundStarICList = [PhoSimCatalogPoint, PhoSimCatalogPoint,
PhoSimCatalogPoint, PhoSimCatalogPoint,
PhoSimCatalogPoint]
compoundGalICList = [PhoSimCatalogSersic2D, PhoSimCatalogSersic2D,
TwinklesCatalogZPoint]
snphosim = PhoSimCatalogSN(db_obj=snmodel,
obs_metadata=obs_metadata,
column_outputs=['EBV'])
snphosim.writeSedFile = True
snphosim.suppressDimSN = True
snphosim.prefix = 'spectra_files/'
while True:
try:
starCat = CompoundInstanceCatalog(compoundStarICList,
compoundStarDBList,
obs_metadata=obs_metadata,
constraint='gmag > 11.',
compoundDBclass=sprinklerCompound)
starCat.write_catalog(filename, chunk_size=10000)
galCat = CompoundInstanceCatalog(compoundGalICList,
compoundGalDBList,
obs_metadata=obs_metadata,
# constraint='g_ab > 11.',
compoundDBclass=sprinklerCompound)
galCat.write_catalog(filename, write_mode='a',
write_header=False, chunk_size=10000)
snphosim.write_catalog(filename, write_header=False,
write_mode='a', chunk_size=10000)
if runobsHistID is not None:
print('Done doing requested obsHistID')
sys.exit()
with open(logfilename, 'a') as f:
f.write('{0:d},DONE,{1:3.6f}\n'.format(obs_metadata.phoSimMetaData['Opsim_obshistid'][0], time.time()))
break
except RuntimeError:
continue
print("Finished Writing Visit: ", obs_metadata.phoSimMetaData['Opsim_obshistid'][0])
description='Generate the reference catalog')
parser.add_argument('opsimDB', help='OpSim database sqlite file')
parser.add_argument('-o',
'--outfile',
type=str,
default='twinkles_ref.txt',
help='Filename of output reference catalog')
args = parser.parse_args()
# you need to provide ObservationMetaDataGenerator with the connection
# string to an OpSim output database. This is the connection string
# to a test database that comes when you install CatSim.
generator = ObservationMetaDataGenerator(database=args.opsimDB,
driver='sqlite')
obsMetaDataResults = generator.getObservationMetaData(fieldRA=(53, 54),
fieldDec=(-29, -27),
boundLength=0.3)
# First get the reference catalog
stars = CatalogDBObject.from_objid('allstars')
while True:
try:
ref_stars = TwinklesReference(stars,
obs_metadata=obsMetaDataResults[0])
break
except RuntimeError:
continue
ref_stars.write_catalog(args.outfile,
write_mode='w',
write_header=True,
chunk_size=20000)
class InstanceCatalogMaker(object):
"""
Class for creating instance catalogs.
Attributes
----------
gen : lsst.sims.catUtils.utils.ObservationMetaDataGenerator
db_config : dict
Dictionary of database connection parameters.
logger : logging.logger
Logger object.
"""
star_objs = ['msstars', 'bhbstars', 'wdstars', 'rrlystars', 'cepheidstars']
gal_objs = ['galaxyBulge', 'galaxyDisk']
def __init__(self, opsim_db, db_config=None, logger=None):
"""
Constructor.
Parameters
----------
opsim_db : str
sqlite3 db file containing observing plan.
db_config : dict, optional
Dictionary of database connection parameters. Parameters
for connecting to fatboy.phys.washington.edu from a
whitelisted machine will be used.
logger : logging.logger, optional
Logger object.
"""
self.gen = ObservationMetaDataGenerator(database=opsim_db,
driver='sqlite')
if db_config is not None:
self.db_config = db_config
else:
self.db_config = dict(database='LSSTCATSIM',
port=1433,
host='fatboy.phys.washington.edu',
driver='mssql+pymssql')
if logger is None:
logging.basicConfig(format="%(message)s", level=logging.INFO,
stream=sys.stdout)
logger = logging.getLogger()
self.logger = logger
def make_instance_catalog(self, obsHistID, band, boundLength, outfile=None):
"""
Method to create instance catalogs.
Parameters
----------
obsHistID : int
obsHistID for the desired visit from the opsim db file.
band : str
Desired LSST filter to use, ugrizy.
boundLength : float
Radius in degrees of sky cone in which to produce objects.
outfile : str, optional
File name of the instance catalog to be produced. If None,
a default name will be generated, e.g.,
phosim_input_0000230_r_0.3deg.txt.
"""
if outfile is None:
outfile = 'phosim_input_%07i_%s_%.1fdeg.txt' % (obsHistID, band,
boundLength)
obs_md = self.gen.getObservationMetaData(obsHistID=obsHistID,
boundLength=boundLength)[0]
do_header = True
for objid in self.star_objs:
self.logger.info("processing %s", objid)
db_obj = CatalogDBObject.from_objid(objid, **self.db_config)
phosim_object = PhoSimCatalogPoint(db_obj, obs_metadata=obs_md)
if do_header:
with open(outfile, 'w') as file_obj:
phosim_object.write_header(file_obj)
do_header = False
phosim_object.write_catalog(outfile, write_mode='a',
write_header=False,
chunk_size=20000)
for objid in self.gal_objs:
self.logger.info("processing %s", objid)
db_obj = CatalogDBObject.from_objid(objid, **self.db_config)
phosim_object = PhoSimCatalogSersic2D(db_obj, obs_metadata=obs_md)
phosim_object.write_catalog(outfile, write_mode='a',
write_header=False,
chunk_size=20000)
bulge_db = GalaxyBulgeObj(connection=star_db.connection)
disk_db = GalaxyDiskObj(connection=star_db.connection)
agn_db = GalaxyAgnObj(connection=star_db.connection)
if not os.path.exists(out_dir):
os.mkdir(out_dir)
phosim_header_map = copy.deepcopy(DefaultPhoSimHeaderMap)
phosim_header_map['nsnap'] = 1
phosim_header_map['vistime'] = 30.0
phosim_header_map['camconfig'] = 1
for obshistid in obshistid_list:
obs_list = obs_generator.getObservationMetaData(obsHistID=obshistid,
boundType='circle',
boundLength=args.fov)
obs = obs_list[0]
if dither_switch:
print 'dithering'
obs.pointingRA = np.degrees(obs.OpsimMetaData['randomDitherFieldPerVisitRA'])
obs.pointingDec = np.degrees(obs.OpsimMetaData['randomDitherFieldPerVisitDec'])
rotSky = _getRotSkyPos(obs._pointingRA, obs._pointingDec, obs,
obs.OpsimMetaData['ditheredRotTelPos'])
obs.rotSkyPos = np.degrees(rotSky)
obs.OpsimMetaData['rotTelPos'] = obs.OpsimMetaData['ditheredRotTelPos']
cat_name = os.path.join(out_dir,'phosim_cat_%d.txt' % obshistid)
star_name = 'star_cat_%d.txt' % obshistid
def setUpClass(cls):
print('setting up %s' % sims_clean_up.targets)
cls.camera = obs_lsst_phosim.PhosimMapper().camera
# These represent the dimmest magnitudes at which objects
# are considered visible in each of the LSST filters
# (taken from Table 2 of the overview paper)
cls.obs_mag_cutoff = (23.68, 24.89, 24.43, 24.0, 24.45, 22.60)
cls.opsim_db = os.path.join(getPackageDir('sims_data'),
'OpSimData',
'opsimblitz1_1133_sqlite.db')
rng = np.random.RandomState(8123)
obs_gen = ObservationMetaDataGenerator(database=cls.opsim_db)
cls.obs_list = obs_gen.getObservationMetaData(night=(0, 2))
cls.obs_list = rng.choice(cls.obs_list, 10, replace=False)
fieldid_list = []
for obs in cls.obs_list:
fieldid_list.append(obs.OpsimMetaData['fieldID'])
# make sure we have selected observations such that the
# same field is revisited more than once
assert len(np.unique(fieldid_list)) < len(fieldid_list)
cls.input_dir = tempfile.mkdtemp(prefix='alertDataGen',
dir=ROOT)
cls.star_db_name = tempfile.mktemp(prefix='alertDataGen_star_db',
dir=cls.input_dir,
suffix='.db')
conn = sqlite3.connect(cls.star_db_name)
cursor = conn.cursor()
cursor.execute('''CREATE TABLE stars
(simobjid int, htmid int, ra real, dec real,
umag real, gmag real, rmag real,
imag real, zmag real, ymag real,
px real, pmra real, pmdec real,
vrad real, varParamStr text)''')
conn.commit()
n_stars = 10
cls.ra_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.dec_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
u_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
g_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
r_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
i_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
z_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
y_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.px_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.pmra_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.pmdec_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.vrad_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.amp_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
cls.period_truth = np.zeros(n_stars*len(cls.obs_list), dtype=float)
id_offset = -n_stars
for obs in cls.obs_list:
id_offset += n_stars
ra_0 = obs.pointingRA
dec_0 = obs.pointingDec
rr = rng.random_sample(n_stars)
theta = rng.random_sample(n_stars)*2.0*np.pi
ra = ra_0 + rr*np.cos(theta)
dec = dec_0 + rr*np.sin(theta)
var_period = rng.random_sample(n_stars)*0.25
var_amp = rng.random_sample(n_stars)*1.0 + 0.01
subset = rng.randint(0, high=len(var_amp)-1, size=3)
var_amp[subset[:2]] = 0.0
var_amp[subset[-1]] = -1.0
umag = rng.random_sample(n_stars)*5.0 + 15.0
gmag = rng.random_sample(n_stars)*5.0 + 15.0
rmag = rng.random_sample(n_stars)*5.0 + 15.0
imag = rng.random_sample(n_stars)*5.0 + 15.0
zmag = rng.random_sample(n_stars)*5.0 + 15.0
ymag = rng.random_sample(n_stars)*5.0 + 15.0
px = rng.random_sample(n_stars)*0.1 # say it is arcsec
pmra = rng.random_sample(n_stars)*50.0+100.0 # say it is arcsec/yr
pmdec = rng.random_sample(n_stars)*50.0+100.0 # say it is arcsec/yr
vrad = rng.random_sample(n_stars)*600.0 - 300.0
subset = rng.randint(0, high=n_stars-1, size=3)
umag[subset] = 40.0
gmag[subset] = 40.0
rmag[subset] = 40.0
imag[subset] = 40.0
zmag[subset] = 40.0
ymag[subset] = 40.0
cls.ra_truth[id_offset:id_offset+n_stars] = np.round(ra, decimals=6)
cls.dec_truth[id_offset:id_offset+n_stars] = np.round(dec, decimals=6)
u_truth[id_offset:id_offset+n_stars] = np.round(umag, decimals=4)
g_truth[id_offset:id_offset+n_stars] = np.round(gmag, decimals=4)
r_truth[id_offset:id_offset+n_stars] = np.round(rmag, decimals=4)
i_truth[id_offset:id_offset+n_stars] = np.round(imag, decimals=4)
z_truth[id_offset:id_offset+n_stars] = np.round(zmag, decimals=4)
y_truth[id_offset:id_offset+n_stars] = np.round(ymag, decimals=4)
cls.px_truth[id_offset:id_offset+n_stars] = np.round(px, decimals=4)
cls.pmra_truth[id_offset:id_offset+n_stars] = np.round(pmra, decimals=4)
cls.pmdec_truth[id_offset:id_offset+n_stars] = np.round(pmdec, decimals=4)
cls.vrad_truth[id_offset:id_offset+n_stars] = np.round(vrad, decimals=4)
cls.amp_truth[id_offset:id_offset+n_stars] = np.round(var_amp, decimals=4)
cls.period_truth[id_offset:id_offset+n_stars] = np.round(var_period, decimals=4)
cls.max_str_len = -1
for i_star in range(n_stars):
if var_amp[i_star] >= -0.1:
varParamStr = ('{"m":"alert_test", "p":{"amp":%.4f, "per": %.4f}}'
% (var_amp[i_star], var_period[i_star]))
else:
varParamStr = 'None'
if len(varParamStr) > cls.max_str_len:
cls.max_str_len = len(varParamStr)
htmid = findHtmid(ra[i_star], dec[i_star], 21)
query = ('''INSERT INTO stars VALUES(%d, %d, %.6f, %.6f,
%.4f, %.4f, %.4f, %.4f, %.4f, %.4f,
%.4f, %.4f, %.4f, %.4f, '%s')'''
% (i_star+id_offset+1, htmid, ra[i_star], dec[i_star],
umag[i_star], gmag[i_star], rmag[i_star],
imag[i_star], zmag[i_star], ymag[i_star],
px[i_star], pmra[i_star], pmdec[i_star],
vrad[i_star], varParamStr))
cursor.execute(query)
conn.commit()
conn.close()
cls.output_dir = tempfile.mkdtemp(dir=ROOT, prefix='alert_gen_output')
cls.mag0_truth_dict = {}
cls.mag0_truth_dict[0] = u_truth
cls.mag0_truth_dict[1] = g_truth
cls.mag0_truth_dict[2] = r_truth
cls.mag0_truth_dict[3] = i_truth
cls.mag0_truth_dict[4] = z_truth
cls.mag0_truth_dict[5] = y_truth
class testGalSimAgn(GalSimAgn):
bandpassNames = ['u', 'g']
#defined in galSimInterface/galSimUtilities.py
PSF = SNRdocumentPSF()
#If you want to use the LSST camera, uncomment the line below.
#You can similarly assign any camera object you want here
#camera = LsstSimMapper().camera
#select an OpSim pointing
opsimdb = os.path.join(getPackageDir('sims_data'), 'OpSimData', 'opsimblitz1_1133_sqlite.db')
obs_gen = ObservationMetaDataGenerator(database=opsimdb)
obs_list = obs_gen.getObservationMetaData(obsHistID=10, boundLength=0.05)
obs_metadata = obs_list[0]
#grab a database of galaxies (in this case, galaxy bulges)
stars = CatalogDBObject.from_objid('allstars')
#now append a bunch of objects with 2D sersic profiles to our output file
stars_galSim = testGalSimStars(stars, obs_metadata=obs_metadata)
catName = 'galSim_compound_example.txt'
stars_galSim.write_catalog(catName, chunk_size=100)
print('done with stars')
bulges = CatalogDBObject.from_objid('galaxyBulge')
bulge_galSim = testGalSimGalaxies(bulges, obs_metadata=obs_metadata)
args = parser.parse_args()
if args.out_dir is None:
raise RuntimeError('must specify out_dir')
if args.log_file is None:
raise RuntimeError('must specify log file')
if os.path.exists(args.log_file):
raise RuntimeError('%s already exists' % args.log_file)
if not os.path.exists(args.out_dir):
os.mkdir(args.out_dir)
# get the list of ObservationMetaData to simulate
obs_gen = ObservationMetaDataGenerator(args.opsim_db, driver='sqlite')
obs_list = obs_gen.getObservationMetaData(night=(args.night0,args.night1))
del obs_gen
sims_clean_up()
gc.collect()
# get the list of trixel htmids to simulate
alert_gen = AlertDataGenerator()
alert_gen.subdivide_obs(obs_list, htmid_level=6)
n_tot_obs=0
for htmid in alert_gen.htmid_list:
n_tot_obs += alert_gen.n_obs(htmid)
with open(args.log_file, 'a') as out_file:
for htmid in alert_gen.htmid_list:
######
t = time.time()
# Get opsim data.
opsdb = '/Users/lynnej/opsim/db/minion_1016_newsky.db'
generator = ObservationMetaDataGenerator(database=opsdb, driver='sqlite')
night = 203
query = 'select min(expMJD), max(expMJD) from summary where night=%d and filter="r"' %(night)
res = generator.opsimdb.execute_arbitrary(query)
expMJD_min = res[0][0]
expMJD_max = res[0][1]
# Test image (deep, r band, near ecliptic)
obsMetaDataResults = generator.getObservationMetaData(expMJD=(expMJD_min, expMJD_max), boundLength=2.2)
dt, t = dtime(t)
print('To query opsim database: %f seconds' %(dt))
write_header = True
write_mode = 'w'
#ssmObj = NEOObj()
ssmObj = SolarSystemObj()
for obs in obsMetaDataResults:
#print obs.mjd, obs.unrefractedRA, obs.unrefractedDec, obs.bandpass, obs.boundType, obs.boundLength
mySsmDb = ssmCatCamera(ssmObj, obs_metadata = obs)
photParams = PhotometricParameters(exptime = obs.OpsimMetaData['visitExpTime'], nexp=1, bandpass=obs.bandpass)
def test_ssm_catalog_creation(self):
t = time.time()
# Fake opsim data.
database = os.path.join(getPackageDir('SIMS_DATA'), 'OpSimData/opsimblitz1_1133_sqlite.db')
generator = ObservationMetaDataGenerator(database=database, driver='sqlite')
night = 20
query = 'select min(expMJD), max(expMJD) from summary where night=%d' % (night)
res = generator.opsimdb.execute_arbitrary(query)
expMJD_min = res[0][0]
expMJD_max = res[0][1]
obsMetaDataResults = generator.getObservationMetaData(expMJD=(expMJD_min, expMJD_max),
limit=3, boundLength=2.2)
dt, t = dtime(t)
print('To query opsim database: %f seconds' % (dt))
write_header = True
write_mode = 'w'
try:
ssmObj = SolarSystemObj()
for obsMeta in obsMetaDataResults:
# But moving objects databases are not currently complete for all years.
# Push forward to night=747.
# (note that we need the phosim dictionary as well)
newMJD = 59590.2 # this MJD is artificially chosen to be in the
# time span of the new baseline simulated survey
obs = ObservationMetaData(mjd=newMJD,
pointingRA=obsMeta.pointingRA,
pointingDec=obsMeta.pointingDec,
bandpassName=obsMeta.bandpass,
rotSkyPos=obsMeta.rotSkyPos,
m5=obsMeta.m5[obsMeta.bandpass],
seeing=obsMeta.seeing[obsMeta.bandpass],
boundLength=obsMeta.boundLength,
boundType=obsMeta.boundType)
obs._OpsimMetaData = {'visitExpTime': 30}
mySsmDb = ssmCatCamera(ssmObj, obs_metadata = obs)
photParams = PhotometricParameters(exptime = obs.OpsimMetaData['visitExpTime'],
nexp=1, bandpass=obs.bandpass)
mySsmDb.photParams = photParams
try:
with lsst.utils.tests.getTempFilePath('.txt') as output_cat:
mySsmDb.write_catalog(output_cat, write_header=write_header, write_mode=write_mode)
# verify that we did not write an empty catalog
with open(output_cat, 'r') as input_file:
lines = input_file.readlines()
msg = 'MJD is %.3f' % obs.mjd.TAI
self.assertGreater(len(lines), 1, msg=msg)
except:
# This is because the solar system object 'tables'
# don't actually connect to tables on fatboy; they just
# call methods stored on fatboy. Therefore, the connection
# failure will not be noticed until this part of the test
msg = sys.exc_info()[1].args[0]
if 'DB-Lib error' in msg:
reassure()
continue
else:
raise
write_mode = 'a'
write_header = False
dt, t = dtime(t)
print('To query solar system objects: %f seconds (obs MJD time %f)' % (dt, obs.mjd.TAI))
except:
trace = traceback.extract_tb(sys.exc_info()[2], limit=20)
msg = sys.exc_info()[1].args[0]
if 'Failed to connect' in msg or failedOnFatboy(trace):
# if the exception was because of a failed connection
# to fatboy, ignore it.
reassure()
pass
else:
raise
bulge_db = GalaxyBulgeObj(connection=star_db.connection)
disk_db = GalaxyDiskObj(connection=star_db.connection)
agn_db = GalaxyAgnObj(connection=star_db.connection)
if not os.path.exists(out_dir):
os.mkdir(out_dir)
phosim_header_map = copy.deepcopy(DefaultPhoSimHeaderMap)
phosim_header_map['nsnap'] = 1
phosim_header_map['vistime'] = 30.0
phosim_header_map['camconfig'] = 1
for obshistid in obshistid_list:
obs_list = obs_generator.getObservationMetaData(obsHistID=obshistid,
boundType='circle',
boundLength=args.fov)
obs = obs_list[0]
if dither_switch:
print 'dithering'
obs.pointingRA = np.degrees(
obs.OpsimMetaData['randomDitherFieldPerVisitRA'])
obs.pointingDec = np.degrees(
obs.OpsimMetaData['randomDitherFieldPerVisitDec'])
rotSky = _getRotSkyPos(obs._pointingRA, obs._pointingDec, obs,
obs.OpsimMetaData['ditheredRotTelPos'])
obs.rotSkyPos = np.degrees(rotSky)
obs.OpsimMetaData['rotTelPos'] = obs.OpsimMetaData[
'ditheredRotTelPos']
import pickle
import os
import time
from lsst.sims.catUtils.utils import ObservationMetaDataGenerator
opsim_dir = '/global/projecta/projectdirs/lsst/groups/SSim/DC2'
opsim_file = os.path.join(opsim_dir, 'minion_1016_desc_dithered_v4.db')
assert os.path.isfile(opsim_file)
out_file = os.path.join(os.environ['SCRATCH'],
'minion_1016_desc_dithered_dict.p')
obs_gen = ObservationMetaDataGenerator(opsim_file)
t_start = time.time()
obs_md = obs_gen.getObservationMetaData(boundLength=2.1,
boundType='circle',
obsHistID=(-10, 1000000000))
print('getting records took %e' % (time.time() - t_start))
out_dict = {}
t_start = time.time()
for obs in obs_md:
out_dict[obs.OpsimMetaData['obsHistID']] = obs
with open(out_file, 'wb') as out_file:
pickle.dump(out_dict, out_file)
print('output took %e' % (time.time() - t_start))
### Building Light Curves from Instance Catalogs
# We would like to create a number of supernova instance catalogs and then build the light curves from the catalogs. To do this correctly, we would like to use the `observation_metadata` associated with a number of conscutive OpSIM pointings.
# In[34]:
opsimPath = os.path.join(eups.productDir('sims_data'),'OpSimData')
opsimDB = os.path.join(opsimPath,'opsimblitz1_1133_sqlite.db')
# from Tuscon AHM notebook from Scott
# This OPSIM DB is provided in sims_data. This creates a list of opsim pointings
# that I have checked. This is a tuned notebook
generator = ObservationMetaDataGenerator() #database = opsimPath, driver='sqlite')
obsMetaDataResults = generator.getObservationMetaData(limit=100,
fieldRA=(5.0, 8.0),
fieldDec=(-85.,-60.),
expMJD=(49300., 49400.),
boundLength=0.015,
boundType='circle')
# In[35]:
# How many pointings do we have?
print len(obsMetaDataResults)
# What are the RA, DEC values of the pointings? And how do they compare with the positions of galaxies we created in the database?
# In[36]:
def coords(x):
args = parser.parse_args()
if args.out_dir is None:
raise RuntimeError('must specify out_dir')
if args.log_file is None:
raise RuntimeError('must specify log file')
if os.path.exists(args.log_file):
raise RuntimeError('%s already exists' % args.log_file)
if not os.path.exists(args.out_dir):
os.mkdir(args.out_dir)
# get the list of ObservationMetaData to simulate
obs_gen = ObservationMetaDataGenerator(args.opsim_db, driver='sqlite')
obs_list = obs_gen.getObservationMetaData(night=(args.night0, args.night1))
del obs_gen
sims_clean_up()
gc.collect()
# get the list of trixel htmids to simulate
alert_gen = AlertDataGenerator()
alert_gen.subdivide_obs(obs_list, htmid_level=6)
n_tot_obs = 0
for htmid in alert_gen.htmid_list:
n_tot_obs += alert_gen.n_obs(htmid)
with open(args.log_file, 'a') as out_file:
for htmid in alert_gen.htmid_list:
def test_date_range(self):
"""
Run test_stellar_light_curves, this time specifying a range in MJD.
"""
raRange = (0.0, 110.0)
decRange = (-90.0, -50.0)
bandpass = '******'
mjdRange = (49356.0, 49357.0)
lc_gen = StellarLightCurveGenerator(self.stellar_db, self.opsimDb)
pointings = lc_gen.get_pointings(raRange, decRange, bandpass=bandpass, expMJD=mjdRange)
test_light_curves, truth_info = lc_gen.light_curves_from_pointings(pointings)
self.assertGreater(len(test_light_curves), 2)
for unique_id in test_light_curves:
# verify that the sources returned all do vary by making sure that the
# np.diff run on the magnitudes reutrns something non-zero
self.assertGreater(np.abs(np.diff(test_light_curves[unique_id][bandpass]['mag'])).max(), 0.0)
self.assertGreater(len(test_light_curves[unique_id][bandpass]['mjd']), 0)
self.assertGreater(test_light_curves[unique_id][bandpass]['mjd'].min(), mjdRange[0]-1.0e-12)
self.assertLess(test_light_curves[unique_id][bandpass]['mjd'].max(), mjdRange[1]+1.0e-12)
# Now test that specifying a small chunk_size does not change the output
# light curves
chunk_light_curves, truth_info = lc_gen.light_curves_from_pointings(pointings, chunk_size=1)
self.assertGreater(len(chunk_light_curves), 2)
for unique_id in test_light_curves:
self.assertEqual(len(test_light_curves[unique_id][bandpass]['mjd']),
len(chunk_light_curves[unique_id][bandpass]['mjd']))
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['mjd'],
chunk_light_curves[unique_id][bandpass]['mjd'])
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['mag'],
chunk_light_curves[unique_id][bandpass]['mag'])
np.testing.assert_array_equal(test_light_curves[unique_id][bandpass]['error'],
chunk_light_curves[unique_id][bandpass]['error'])
# Now find all of the ObservationMetaData that were included in our
# light curves, generate InstanceCatalogs from them separately,
# and verify that the contents of the InstanceCatalogs agree with
# the contents of the light curves.
gen = ObservationMetaDataGenerator(database=self.opsimDb,
driver='sqlite')
obs_list = gen.getObservationMetaData(fieldRA=raRange,
fieldDec=decRange,
telescopeFilter=bandpass,
expMJD=mjdRange,
boundLength=1.75)
ct = 0
for obs in obs_list:
cat = stellarControlCatalog(self.stellar_db,
obs_metadata=obs)
for star_obj in cat.iter_catalog():
ct += 1
lc = test_light_curves[star_obj[0]][bandpass]
dex = np.argmin(np.abs(lc['mjd']-obs.mjd.TAI))
self.assertLess(np.abs(lc['mjd'][dex]-obs.mjd.TAI), 1.0e-7)
self.assertLess(np.abs(lc['mag'][dex]-star_obj[3]), 1.0e-7)
self.assertLess(np.abs(lc['error'][dex]-star_obj[4]), 1.0e-7)
# Verify that the same number of objects and observations were found in the
# catalogs and the LightCurveGenerator output
total_ct = 0
for obj_name in test_light_curves:
for bandpass in test_light_curves[obj_name]:
total_ct += len(test_light_curves[obj_name][bandpass]['mjd'])
self.assertEqual(ct, total_ct)
