def databases(rtdata_module):
"""Create the necessary databases needed to run pointing code
The SIAF database needs to be open explicitly and requires `pysiaf`.
The engineering database is handled as a context.
Returns
-------
siaf_db, metas : `set_telescope_pointing.SiafDb`, dict
Returns the tuple of the siaf database and all exposures meta information.
"""
with siafdb.SiafDb() as siaf_db:
# Get the exposures' meta information
metas_path = rtdata_module.get_data('pointing/jw00697013_metas.asdf')
with asdf.open(metas_path) as metas_asdf:
metas = metas_asdf['metas']
# Setup the engineering database
engdb_path = Path('engdb')
engdb_path.mkdir()
with pushdir(engdb_path):
paths = rtdata_module.data_glob('pointing/jw00697013_engdb')
for path in paths:
rtdata_module.get_data(path)
# Pass on the database info.
with engdb_mock.EngDB_Mocker(db_path=engdb_path):
yield siaf_db, metas
def test_get_wcs(source, expected, use_pysiaf):
"""Test retrieval of wcs information."""
if use_pysiaf:
pytest.importorskip('pysiaf')
with siafdb.SiafDb(source) as siaf_db:
siaf = siaf_db.get_wcs('FGS1_FULL_OSS')
assert siaf == expected
def test_create(source, expected, use_pysiaf, jail_environ):
"""Test the the right objects are created"""
if use_pysiaf:
pytest.importorskip('pysiaf')
if source == 'XML_DATA':
os.environ['XML_DATA'] = str(Path(__file__).parent / 'data')
source = None
with siafdb.SiafDb(source) as siaf_db:
assert isinstance(siaf_db._db, expected)
def make_t_pars(detector='any', fgsid_telem=1, fgsid_user=None):
"""Setup initial Transforms Parameters
This set was derived from the first valid group of engineering parameters for exposure
jw00624028002_02101_00001_nrca1 retrieved from the SDP regression tests for Build 7.7.1.
Parameters
==========
fgsid_telem : [1, 2]
The FGS reference guider to report from telemetry.
fgsid_user : [None, 1, 2]
The user-specified FGS to use as the reference guider.
"""
t_pars = stp.TransformParameters()
t_pars.detector = detector
t_pars.fgsid = fgsid_user
t_pars.guide_star_wcs = stp.WCSRef(ra=241.24294932221,
dec=70.66165389073196,
pa=None)
t_pars.pointing = stp.Pointing(
q=np.array([-0.20954692, -0.6177655, -0.44653177, 0.61242575]),
j2fgs_matrix=np.array([
-9.77300013e-04, 3.38988895e-03, 9.99993777e-01, 9.99999522e-01,
8.37175385e-09, 9.77305600e-04, 3.30458575e-06, 9.99994254e-01,
-3.38988734e-03
]),
fsmcorr=np.array([0.00584114, -0.00432878]),
obstime=Time(1611628160.325, format='unix'),
gs_commanded=np.array([-22.40031242, -8.17869377]),
gs_position=np.array([-22.4002638, -8.1786461]),
fgsid=fgsid_telem,
)
t_pars.siaf = siafdb.SIAF(v2_ref=120.525464,
v3_ref=-527.543132,
v3yangle=-0.5627898,
vparity=-1,
crpix1=1024.5,
crpix2=1024.5,
cdelt1=0.03113928,
cdelt2=0.03132232,
vertices_idl=(-32.1682, 32.0906, 31.6586,
-31.7234, -32.1683, -32.1904,
32.0823, 31.9456))
t_pars.siaf_db = siafdb.SiafDb(siaf_path)
return t_pars