def testStellarPhotometricUncertainties(self):
"""
Test in the case of a catalog of stars
"""
lsstDefaults = LSSTdefaults()
starDB = testStarsDBObj(driver=self.driver, host=self.host, database=self.dbName)
starCat = testStarCatalog(starDB, obs_metadata=self.obs_metadata)
phot = PhotometryStars()
ct = 0
for line in starCat.iter_catalog():
starSed = Sed()
starSed.readSED_flambda(os.path.join(lsst.utils.getPackageDir('sims_sed_library'),
defaultSpecMap[line[14]]))
imsimband = Bandpass()
imsimband.imsimBandpass()
fNorm = starSed.calcFluxNorm(line[15], imsimband)
starSed.multiplyFluxNorm(fNorm)
aV = numpy.float(line[16])
a_int, b_int = starSed.setupCCMab()
starSed.addCCMDust(a_int, b_int, A_v=aV)
for i in range(len(self.bandpasses)):
controlSigma = calcMagError_sed(starSed, self.totalBandpasses[i],
self.skySeds[i],
self.hardwareBandpasses[i],
FWHMeff=lsstDefaults.FWHMeff(self.bandpasses[i]),
photParams=PhotometricParameters())
testSigma = line[8+i]
self.assertAlmostEqual(controlSigma, testSigma, 4)
ct += 1
self.assertGreater(ct, 0)
def testStellarPhotometricUncertainties(self):
"""
Test in the case of a catalog of stars
"""
lsstDefaults = LSSTdefaults()
starDB = testStarsDBObj(driver=self.driver,
host=self.host,
database=self.dbName)
starCat = testStarCatalog(starDB, obs_metadata=self.obs_metadata)
ct = 0
for line in starCat.iter_catalog():
starSed = Sed()
starSed.readSED_flambda(
os.path.join(getPackageDir('sims_sed_library'),
defaultSpecMap[line[14]]))
imsimband = Bandpass()
imsimband.imsimBandpass()
fNorm = starSed.calcFluxNorm(line[15], imsimband)
starSed.multiplyFluxNorm(fNorm)
aV = np.float(line[16])
a_int, b_int = starSed.setupCCMab()
starSed.addCCMDust(a_int, b_int, A_v=aV)
for i in range(len(self.bandpasses)):
controlSigma = calcMagError_sed(
starSed,
self.totalBandpasses[i],
self.skySeds[i],
self.hardwareBandpasses[i],
FWHMeff=lsstDefaults.FWHMeff(self.bandpasses[i]),
photParams=PhotometricParameters())
testSigma = line[8 + i]
self.assertAlmostEqual(controlSigma, testSigma, 4)
ct += 1
self.assertGreater(ct, 0)
def testGalaxyPhotometricUncertainties(self):
"""
Test in the case of a catalog of galaxies
"""
lsstDefaults = LSSTdefaults()
phot = PhotometryGalaxies()
galDB = testGalaxyTileDBObj(driver=self.driver, host=self.host, database=self.dbName)
galCat = testGalaxyCatalog(galDB, obs_metadata=self.obs_metadata)
imsimband = Bandpass()
imsimband.imsimBandpass()
ct = 0
for line in galCat.iter_catalog():
bulgeSedName = line[50]
diskSedName = line[51]
agnSedName = line[52]
magNormBulge = line[53]
magNormDisk = line[54]
magNormAgn = line[55]
avBulge = line[56]
avDisk = line[57]
redshift = line[58]
bulgeSed = Sed()
bulgeSed.readSED_flambda(os.path.join(lsst.utils.getPackageDir('sims_sed_library'),
defaultSpecMap[bulgeSedName]))
fNorm=bulgeSed.calcFluxNorm(magNormBulge, imsimband)
bulgeSed.multiplyFluxNorm(fNorm)
diskSed = Sed()
diskSed.readSED_flambda(os.path.join(lsst.utils.getPackageDir('sims_sed_library'),
defaultSpecMap[diskSedName]))
fNorm = diskSed.calcFluxNorm(magNormDisk, imsimband)
diskSed.multiplyFluxNorm(fNorm)
agnSed = Sed()
agnSed.readSED_flambda(os.path.join(lsst.utils.getPackageDir('sims_sed_library'),
defaultSpecMap[agnSedName]))
fNorm = agnSed.calcFluxNorm(magNormAgn, imsimband)
agnSed.multiplyFluxNorm(fNorm)
a_int, b_int = bulgeSed.setupCCMab()
bulgeSed.addCCMDust(a_int, b_int, A_v=avBulge)
a_int, b_int = diskSed.setupCCMab()
diskSed.addCCMDust(a_int, b_int, A_v=avDisk)
bulgeSed.redshiftSED(redshift, dimming=True)
diskSed.redshiftSED(redshift, dimming=True)
agnSed.redshiftSED(redshift, dimming=True)
bulgeSed.resampleSED(wavelen_match=self.totalBandpasses[0].wavelen)
diskSed.resampleSED(wavelen_match=bulgeSed.wavelen)
agnSed.resampleSED(wavelen_match=bulgeSed.wavelen)
numpy.testing.assert_almost_equal(bulgeSed.wavelen, diskSed.wavelen)
numpy.testing.assert_almost_equal(bulgeSed.wavelen, agnSed.wavelen)
fl = bulgeSed.flambda + diskSed.flambda + agnSed.flambda
totalSed = Sed(wavelen=bulgeSed.wavelen, flambda=fl)
sedList = [totalSed, bulgeSed, diskSed, agnSed]
for i, spectrum in enumerate(sedList):
if i==0:
msgroot = 'failed on total'
elif i==1:
msgroot = 'failed on bulge'
elif i==2:
msgroot = 'failed on disk'
elif i==3:
msgroot = 'failed on agn'
for j, b in enumerate(self.bandpasses):
controlSigma = calcMagError_sed(spectrum, self.totalBandpasses[j],
self.skySeds[j],
self.hardwareBandpasses[j],
FWHMeff=lsstDefaults.FWHMeff(b),
photParams=PhotometricParameters())
testSigma = line[26+(i*6)+j]
msg = '%e neq %e; ' % (testSigma, controlSigma) + msgroot
self.assertAlmostEqual(testSigma, controlSigma, 10, msg=msg)
ct += 1
self.assertGreater(ct, 0)
def testGalaxyPhotometricUncertainties(self):
"""
Test in the case of a catalog of galaxies
"""
lsstDefaults = LSSTdefaults()
galDB = testGalaxyTileDBObj(driver=self.driver,
host=self.host,
database=self.dbName)
galCat = testGalaxyCatalog(galDB, obs_metadata=self.obs_metadata)
imsimband = Bandpass()
imsimband.imsimBandpass()
ct = 0
for line in galCat.iter_catalog():
bulgeSedName = line[50]
diskSedName = line[51]
agnSedName = line[52]
magNormBulge = line[53]
magNormDisk = line[54]
magNormAgn = line[55]
avBulge = line[56]
avDisk = line[57]
redshift = line[58]
bulgeSed = Sed()
bulgeSed.readSED_flambda(
os.path.join(getPackageDir('sims_sed_library'),
defaultSpecMap[bulgeSedName]))
fNorm = bulgeSed.calcFluxNorm(magNormBulge, imsimband)
bulgeSed.multiplyFluxNorm(fNorm)
diskSed = Sed()
diskSed.readSED_flambda(
os.path.join(getPackageDir('sims_sed_library'),
defaultSpecMap[diskSedName]))
fNorm = diskSed.calcFluxNorm(magNormDisk, imsimband)
diskSed.multiplyFluxNorm(fNorm)
agnSed = Sed()
agnSed.readSED_flambda(
os.path.join(getPackageDir('sims_sed_library'),
defaultSpecMap[agnSedName]))
fNorm = agnSed.calcFluxNorm(magNormAgn, imsimband)
agnSed.multiplyFluxNorm(fNorm)
a_int, b_int = bulgeSed.setupCCMab()
bulgeSed.addCCMDust(a_int, b_int, A_v=avBulge)
a_int, b_int = diskSed.setupCCMab()
diskSed.addCCMDust(a_int, b_int, A_v=avDisk)
bulgeSed.redshiftSED(redshift, dimming=True)
diskSed.redshiftSED(redshift, dimming=True)
agnSed.redshiftSED(redshift, dimming=True)
bulgeSed.resampleSED(wavelen_match=self.totalBandpasses[0].wavelen)
diskSed.resampleSED(wavelen_match=bulgeSed.wavelen)
agnSed.resampleSED(wavelen_match=bulgeSed.wavelen)
np.testing.assert_almost_equal(bulgeSed.wavelen, diskSed.wavelen)
np.testing.assert_almost_equal(bulgeSed.wavelen, agnSed.wavelen)
fl = bulgeSed.flambda + diskSed.flambda + agnSed.flambda
totalSed = Sed(wavelen=bulgeSed.wavelen, flambda=fl)
sedList = [totalSed, bulgeSed, diskSed, agnSed]
for i, spectrum in enumerate(sedList):
if i == 0:
msgroot = 'failed on total'
elif i == 1:
msgroot = 'failed on bulge'
elif i == 2:
msgroot = 'failed on disk'
elif i == 3:
msgroot = 'failed on agn'
for j, b in enumerate(self.bandpasses):
controlSigma = calcMagError_sed(
spectrum,
self.totalBandpasses[j],
self.skySeds[j],
self.hardwareBandpasses[j],
FWHMeff=lsstDefaults.FWHMeff(b),
photParams=PhotometricParameters())
testSigma = line[26 + (i * 6) + j]
msg = '%e neq %e; ' % (testSigma, controlSigma) + msgroot
self.assertAlmostEqual(testSigma,
controlSigma,
10,
msg=msg)
ct += 1
self.assertGreater(ct, 0)
