マルチバンド解析後の天体カタログ (forced_src) の中身¶
flagの類はflagsというcolumnに格納されています。 例えばpythonでbase_PixelFlags_flag_badを見たい場合は、
from astropy.io import fits
hdul=fits.open("forced_src-filter-tract-patch.fits")
hdul[1].data[“flags”][…,56-1]
# ヘッダに TFLAG56 = ‘base_PixelFlags_flag_bad’と記述されている場合。
# -1するのはTFLAG1から始まっているため。
| Name | Type | Doc |
|---|---|---|
| id | int64 | unique ID |
| coord_ra | float64 | position in ra/dec |
| coord_dec | float64 | position in ra/dec |
| parent | int64 | unique ID of parent source |
| deblend_nChild | int32 | Number of children this object has (defaults to 0) |
| base_SdssCentroid_[x,y] | float64 | centroid from Sdss Centroid algorithm |
| base_SdssCentroid_[x,y]Err | float64 | 1-sigma uncertainty on [x,y] position |
| base_TransformedCentroid_[x,y] | float64 | transformed reference centroid [column,raw] |
| base_TransformedCentroid_flag | flag | whether the reference centroid is marked as bad |
| base_InputCount_value | float64 | Number of images contributing at center, not including anyclipping |
| base_SdssShape_[xx,yy,xy] | float64 | elliptical Gaussian adaptive moments |
| base_SdssShape_[xx,yy,xy]Err | float64 | Standard deviation of [xx,yy,xy] moment |
| base_SdssShape_[x,y] | float64 | elliptical Gaussian adaptive moments |
| base_SdssShape_instFlux | float64 | instFlux uncertainty |
| base_SdssShape_instFluxErr | float64 | 1-sigma instFlux uncertainty |
| base_SdssShape_psf_[xx,yy,xy] | float64 | adaptive moments of the PSF model at the object position |
| base_SdssShape_instFlux_[xx,yy,xy]_Cov | float64 | uncertainty covariance between base_SdssShape_instFlux and base_SdssShape_xx |
| base_TransformedShape_[xx,yy,xy] | float64 | transformed reference shape [x^2,y^2,xy] moment |
| base_TransformedShape_flag | flag | whether the reference shape is marked as bad |
| modelfit_DoubleShapeletPsfApprox_0_[xx,yy,xy,x,y,0,1,2,3,4,5] | float64 | Double-Shapelet approximation to the PSF model at the position of this source |
| modelfit_DoubleShapeletPsfApprox_1_[xx,yy,xy,x,y,0,1,2] | float64 | Double-Shapelet approximation to the PSF model at the position of this source |
| modelfit_DoubleShapeletPsfApprox_flag | flag | General Failure Flag |
| modelfit_DoubleShapeletPsfApprox_flag_invalidPointForPsf | flag | PSF model could not be evaluated at the source position |
| modelfit_DoubleShapeletPsfApprox_flag_invalidMoments | flag | Moments of the PSF model were not a valid ellipse |
| modelfit_DoubleShapeletPsfApprox_flag_maxIterations | flag | optimizer exceeded the maximum number (inner or outer) iterations |
| base_CircularApertureFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_instFlux | float64 | instFlux within [3.0,4.5,6.0,9.0,12,17,25,35,50,70]-pixel aperture |
| base_CircularApertureFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_instFluxErr | float64 | 1-sigma flux uncertainty |
| base_GaussianFlux_flux | float64 | flux from Gaussian Flux algorithm |
| base_GaussianFlux_fluxSigma | float64 | 1-sigma flux uncertainty |
| base_LocalBackground_instFlux | float64 | background in annulus around source |
| base_LocalBackground_instFluxErr | float64 | 1-sigma instFlux uncertainty |
| base_PSFFlux_instFlux | float64 | instFlux derived from linear least-squares fit of PSF model |
| base_PSFFlux_instFlux Err | float64 | 1-sigma instFlux uncertainty |
| base_PsfFlux_area | float64 | effective area of PSF |
| base_Variance_value | float64 | Variance at object position |
| ext_photometryKron_KronFlux_instflux | float64 | flux from Kron Flux algorithm |
| ext_photometryKron_KronFlux_instfluxErr | float64 | 1-sigma instFlux uncertainty |
| ext_photometryKron_KronFlux_radius | float64 | Kron radius (sqrt(a*b)) |
| ext_photometryKron_KronFlux_radius_for_radius | float64 | radius used to estimate <radius> (sqrt(a*b)) |
| ext_photometryKron_KronFlux_psf_radius | float64 | Radius of PSF |
| ext_convolved_ConvolvedFlux_seeing | float64 | original seeing (Gaussian sigma) at position |
| ext_convolved_ConvolvedFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_instFlux | float64 | instFlux within [3.0,4.5,6.0,9.0,12,17,25,35,50,70]-pixel aperture |
| ext_convolved_ConvolvedFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_instFluxErr | float64 | 1-sigma flux uncertainty |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_instFlux | float64 | convolved Kron flux: seeing [3.500000,5.000000,6.500000,8.000000] |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_instFluxErr | float64 | 1-sigma flux uncertainty |
| modelfit_CModel_initial_instFlux | float64 | flux from the initial fit |
| modelfit_CModel_initial_instFluxErr | float64 | flux uncertainty from the initial fit |
| modelfit_CModel_initial_instFlux_inner | flag | flux within the fit region, with no extrapolation |
| modelfit_CModel_exp_instFlux | float64 | flux from the exponential fit |
| modelfit_CModel_exp_instFluxErr | float64 | flux uncertainty from the exponential fit |
| modelfit_CModel_exp_instFlux_inner | float64 | flux within the fit region, with no extrapolation |
| modelfit_CModel_dev_instFlux | float64 | flux from the de Vaucouleur fit |
| modelfit_CModel_dev_instFluxErr | float64 | flux uncertainty from the de Vaucouleur fit |
| modelfit_CModel_dev_instFlux_inner | float64 | flux within the fit region, with no extrapolation |
| modelfit_CModel_instFlux | float64 | flux from the final cmodel fit |
| modelfit_CModel_instFluxErr | float64 | flux uncertainty from the final cmodel |
| modelfit_CModel_instFlux_inner | float64 | flux within the fit region, with no extrapolation |
| modelfit_CModel_fracDev | float64 | fraction of flux in de Vaucouleur component |
| modelfit_CModel_objective | float64 | -ln(likelihood) (chi^2) in cmodel fit |
| undeblended_base_CircularApertureFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_flux | float64 | flux within [3.0,4.5,6.0,9.0,12,17,25,35,50,70]-pixel aperture |
| undeblended_base_CircularApertureFlux_[3_0,4_5,6_0,9_0,12_0,17_0,25_0,35_0,50_0,70_0]_fluxSigma | float64 | 1-sigma flux uncertainty |
| undeblended_base_PsfFlux_instFlux | float64 | flux derived from linear least-squares fit of PSF model |
| undeblended_base_PsfFlux_instFluxErr | float64 | 1-sigma flux uncertainty |
| undeblended_base_PsfFlux_area | float64 | effective area of PSF |
| undeblended_ext_photometryKron_KronFlux_instFlux | float64 | flux from Kron Flux algorithm |
| undeblended_ext_photometryKron_KronFlux_instFluxErr | float64 | 1-sigma flux uncertainty |
| undeblended_ext_photometryKron_KronFlux_radius | float32 | Kron radius (sqrt(a*b)) |
| undeblended_ext_photometryKron_KronFlux_radius_for_radius | float32 | radius used to estimate <radius> (sqrt(a*b)) |
| undeblended_ext_photometryKron_KronFlux_psf_radius | float32 | Radius of PSF |
| ext_convolved_ConvolvedFlux_seeing | float32 | original seeing (Gaussian sigma) at position |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0]_instFlux | float64 | flux within [3.300000,4.500000,6.000000]-pixel aperture |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0]_instfluxErr | float64 | 1-sigma flux uncertainty |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_instFlux | float64 | convolved Kron flux: seeing [3.500000,5.000000,6.500000,8.000000] |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_fluxSigma | float64 | 1-sigma flux uncertainty |
| base_GaussianFlux_apCorr | float64 | aperture correction applied to base_GaussianFlux |
| base_GaussianFlux_apCorrErr | float64 | standard deviation of aperture correction applied to base_GaussianFllux |
| base_PsfFlux_apCorr | float64 | aperture correction applied to base_PsfFlux |
| base_PsfFlux_apCorrErr | float64 | standard deviation of aperture correction applied to base_PsfFlux’ |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_apCorr | float64 | aperture correction applied to ext_convolved_ConvolvedFlux_[0,1,2,3]_kron |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_kron_apCorrErr | float64 | standard deviation of aperture correction applied to ext_convolved_ConvolvedFlux_[0,1,2,3]_kron |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0]_apCorr | float64 | aperture correction applied to ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0] |
| ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0]_apCorrErr | float64 | standard deviation of aperture correction applied to ext_convolved_ConvolvedFlux_[0,1,2,3]_[3_3,4_5,6_0] |
| ext_photometryKron_KronFlux_apCorr | float64 | aperture correction applied to ext_photometryKron_KronFlux |
| ext_photometryKron_KronFlux_apCorrErr | float64 | standard deviation of aperture correction applied to ext_photometryKron_KronFlux |
| modelfit_CModel_apCorr | float64 | aperture correction applied to modelfit_CModel |
| modelfit_CModel_apCorrErr | float64 | standard deviation of aperture correction applied to modelfit_CModel |
| modelfit_CModel_dev_apCorr | float64 | aperture correction applied to modelfit_CModel_dev |
| modelfit_CModel_dev_apCorrErr | float64 | standard deviation of aperture correction applied to modelfit_CModel_dev |
| modelfit_CModel_exp_apCorr | float64 | aperture correction applied to modelfit_CModel_exp |
| modelfit_CModel_exp_apCorrErr | float64 | standard deviation of aperture correction applied to modelfit_CModel_exp |
| modelfit_CModel_initial_apCorr | float64 | aperture correction applied to modelfit_CModel_initial |
| modelfit_CModel_initial_apCorrErr | float64 | standard deviation of aperture correction applied to modelfit_CModel_initial |
| base_ClassificationExtendedness_value | float64 | Set to 1 for extended sources, 0 for point sources. |