Shear Validated Measurements Product¶
Metadata¶
Data product name |
DpdSheValidatedMeasurements |
Data product custodian |
SHE |
Name of the Schema file |
|
Processing Element(s) creating/using the data product |
SHE |
Processing function using the data product |
SHE |
Proposed for inclusion in EAS/SAS |
This product is proposed for inclusion in the SAS: no |
Detailed description of the data product¶
An XML data product containing a fits catalogue to store shear measurements, as well as other related measurements. This product will contain the following 3 catalogContainer objects, each pointing to a fits binary table:
LensMcShearMeasurements
Catalog: 56 columns table |
|||
|---|---|---|---|
Name |
Description |
Unit |
Format |
OBJECT_ID |
Galaxy ID. Duplicate entries are possible only in reconciled catalogue |
NA |
FITS K |
SHE_LENSMC_FIT_FLAGS |
Set of bit flags based on fit status, see DPDD for detailed information |
NA |
FITS K |
SHE_LENSMC_VAL_FLAGS |
Set of bit flags based on validation status (definition TBD) |
NA |
FITS K |
SHE_LENSMC_FIT_CLASS |
Classification of object as galaxy (0), star(1), or unknown (2) |
NA |
FITS I |
SHE_LENSMC_NEXP |
Fraction of object’s region which is unmasked (using appropriate weight function) |
NA |
FITS I |
SHE_LENSMC_UNMASKED_FRACTION |
Fraction of object’s region which is unmasked (using appropriate weight function) |
NA |
FITS E |
SHE_LENSMC_REC_FLAGS |
Set of bit flags based on reconciliation status (definition TBD) |
NA |
FITS K |
SHE_LENSMC_E1 |
Internally-calibrated estimate of first component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_LENSMC_E1_ERR |
1-sigma error on E1 |
NA |
FITS E |
SHE_LENSMC_E2 |
Internally-calibrated estimate of second component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_LENSMC_E2_ERR |
1-sigma error on E2 |
NA |
FITS E |
SHE_LENSMC_E_VAR |
Measurement variance (per ellipticity component) |
NA |
FITS E |
SHE_LENSMC_E1E2_COVAR |
Covariance of E1 and E2 |
NA |
FITS E |
SHE_LENSMC_SHAPE_NOISE |
Assumed value of shape noise (as standard deviation, not variance) |
NA |
FITS E |
SHE_LENSMC_WEIGHT |
Weight of object in the shear sample |
NA |
FITS E |
SHE_LENSMC_E1_CORRECTED |
Corrected first component of ellipticity |
NA |
FITS E |
SHE_LENSMC_E1_CORRECTED_ERR |
1-sigma error on E1_CORRECTED |
NA |
FITS E |
SHE_LENSMC_E2_CORRECTED |
Corrected second component of ellipticity |
NA |
FITS E |
SHE_LENSMC_E2_CORRECTED_ERR |
1-sigma error on E2_CORRECTED |
NA |
FITS E |
SHE_LENSMC_RA |
Estimate of Right Ascension of the galaxy center position deg |
NA |
FITS D |
SHE_LENSMC_RA_ERR |
1-Sigma error on RA |
NA |
FITS E |
SHE_LENSMC_DEC |
Estimate of Declination of the galaxy center position deg |
NA |
FITS D |
SHE_LENSMC_DEC_ERR |
1-Sigma error on DEC |
NA |
FITS E |
SHE_LENSMC_RE |
Estimate of the size of the galaxy, as scale length for an elliptical profile |
NA |
FITS E |
SHE_LENSMC_RE_ERR |
1-sigma error on RE |
NA |
FITS E |
SHE_LENSMC_FLUX |
Estimate of galaxy flux in normalised count rate |
NA |
FITS E |
SHE_LENSMC_FLUX_ERR |
1-sigma error on FLUX |
NA |
FITS E |
SHE_LENSMC_FLUX_BULGE |
Estimate of bulge flux in normalised count rate |
NA |
FITS E |
SHE_LENSMC_FLUX_BULGE_ERR |
1-sigma error on FLUX_BULGE |
NA |
FITS E |
SHE_LENSMC_FLUX_DISK |
Estimate of disk flux in normalised count rate |
NA |
FITS E |
SHE_LENSMC_FLUX_DISK_ERR |
1-sigma error on FLUX_DISK |
NA |
FITS E |
SHE_LENSMC_ZP |
Estimate of zero-point magnitude |
NA |
FITS E |
SHE_LENSMC_MAG |
Estimate of VIS magnitude calculated as MAG = -2.5 * log10(FLUX) | ZP |
NA |
FITS E |
SHE_LENSMC_MAG_ERR |
1-sigma error on MAG |
NA |
FITS E |
SHE_LENSMC_SNR |
Estimate of galaxy signal-to-noise ratio |
NA |
FITS E |
SHE_LENSMC_SNR_ERR |
1-sigma error on SNR |
NA |
FITS E |
SHE_LENSMC_BULGE_FRAC |
Estimate of galaxy bulge fraction |
NA |
FITS E |
SHE_LENSMC_BULGE_FRAC_ERR |
1-Sigma error on BULGE_FRAC |
NA |
FITS E |
SHE_LENSMC_HLR |
Estimate of total flux-averaged half-light radius |
NA |
FITS E |
SHE_LENSMC_HLR_ERR |
1-Sigma error on HLR |
NA |
FITS E |
SHE_LENSMC_CHI2 |
Goodness of fit per degree of freedom |
NA |
FITS E |
SHE_LENSMC_DOF |
Number of degrees of freedom |
NA |
FITS J |
SHE_LENSMC_ACCEPTANCE |
MCMC acceptance rate |
NA |
FITS E |
SHE_LENSMC_M1_ICAL |
Internal calibration shear response to apply to E1 estimates after averaging over a large sample (TBD) |
NA |
FITS E |
SHE_LENSMC_M2_ICAL |
Internal calibration shear response to apply to E2 estimates after averaging over a large sample (TBD) |
NA |
FITS E |
SHE_LENSMC_M11 |
Estimate of 11 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_LENSMC_M12 |
Estimate of 12 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_LENSMC_M21 |
Estimate of 21 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_LENSMC_M22 |
Estimate of 22 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_LENSMC_C1 |
Estimate of first component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_LENSMC_C2 |
Estimate of second component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_LENSMC_ALPHA1 |
Estimate of first component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
SHE_LENSMC_ALPHA2 |
Estimate of second component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
SHE_LENSMC_PSF_E1 |
First component of ellipticity of the PSF model |
NA |
FITS E |
SHE_LENSMC_PSF_E2 |
Second component of ellipticity of the PSF model |
NA |
FITS E |
SHE_LENSMC_PSF_R2 |
R2 size of the PSF model |
NA |
FITS E |
MetaCalShearMeasurements
Catalog: 22 columns table |
|||
|---|---|---|---|
Name |
Description |
Unit |
Format |
OBJECT_ID |
Object ID in the SGS pipeline |
NA |
FITS K |
SHE_METACAL_RA |
Right ascension of the object in degrees (measured by SHE) |
NA |
FITS D |
SHE_METACAL_DEC |
Declination of the object in degrees (measured by SHE) |
NA |
FITS D |
SHE_METACAL_E1_CORRECTED |
Corrected first component of ellipticity of the object |
NA |
FITS E |
SHE_METACAL_E2_CORRECTED |
Corrected second component of ellipticity of the object |
NA |
FITS E |
SHE_METACAL_E1 |
First component of ellipticity of the object |
NA |
FITS E |
SHE_METACAL_E2 |
Second component of ellipticity of the object |
NA |
FITS E |
SHE_METACAL_R2 |
Galaxy R2 size measure |
NA |
FITS E |
SHE_METACAL_SN |
Galaxy signal-to-noise |
NA |
FITS E |
SHE_METACAL_M11 |
Estimate of 11 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_METACAL_M12 |
Estimate of 12 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_METACAL_M21 |
Estimate of 21 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_METACAL_M22 |
Estimate of 22 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_METACAL_C1 |
Estimate of first component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_METACAL_C2 |
Estimate of second component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_METACAL_ALPHA1 |
Estimate of first component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
SHE_METACAL_ALPHA2 |
Estimate of second component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
SHE_METACAL_WEIGHT |
Weight of the object in the shear sample |
NA |
FITS E |
SHE_METACAL_E_VAR |
Ellipticity variance |
NA |
FITS E |
SHE_METACAL_PSF_E1 |
First component of ellipticity of the PSF model |
NA |
FITS E |
SHE_METACAL_PSF_E2 |
Second component of ellipticity of the PSF model |
NA |
FITS E |
SHE_METACAL_PSF_R2 |
R2 size of the PSF model |
NA |
FITS E |
MomentsMlShearMeasurements
Catalog: 39 columns table |
|||
|---|---|---|---|
Name |
Description |
Unit |
Format |
OBJECT_ID |
Galaxy ID |
NA |
FITS K |
SHE_MOMENTSML_FIT_FLAGS |
Set of bit flags based on fit status (definition TBD) |
NA |
FITS K |
SHE_MOMENTSML_VAL_FLAGS |
Set of bit flags based on validation status (definition TBD) |
NA |
FITS K |
SHE_MOMENTSML_FIT_CLASS |
Classification of object as galaxy (0), star(1), or unknown (2) |
NA |
FITS I |
SHE_MOMENTSML_NEXP |
Number of exposures in which this object appears |
NA |
FITS I |
SHE_MOMENTSML_UNMASKED_FRACTION |
Fraction of object’s region which is unmasked (using appropriate weight function) |
NA |
FITS E |
SHE_MOMENTSML_REC_FLAGS |
Set of bit flags based on reconciliation status (definition TBD) |
NA |
FITS K |
SHE_MOMENTSML_E1 |
Estimate of first component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_MOMENTSML_E1_ERR |
1-sigma error on E1 |
NA |
FITS E |
SHE_MOMENTSML_E2 |
Estimate of second component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_MOMENTSML_E2_ERR |
1-sigma error on E2 |
NA |
FITS E |
SHE_MOMENTSML_E_VAR |
Variance on G |
NA |
FITS E |
SHE_MOMENTSML_E1E2_COVAR |
Covariance of E1 and E2 |
NA |
FITS E |
SHE_MOMENTSML_SHAPE_NOISE |
Assumed value of shape noise (as standard deviation, not variance) |
NA |
FITS E |
SHE_MOMENTSML_SHEAR_WEIGHT |
Shear weight for this object |
NA |
FITS E |
SHE_MOMENTSML_E1_CAL |
Calibrated estimate of first component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_MOMENTSML_E1_CAL_ERR |
1-sigma error on E1_CAL |
NA |
FITS E |
SHE_MOMENTSML_E2_CAL |
Calibrated estimate of second component of ellipticity, in (-ra,dec) coordinates |
NA |
FITS E |
SHE_MOMENTSML_E2_CAL_ERR |
1-sigma error on E2_CAL |
NA |
FITS E |
SHE_MOMENTSML_RA |
Estimate of Right Ascension of the galaxy center position deg |
NA |
FITS D |
SHE_MOMENTSML_RA_ERR |
1-Sigma error on RA |
NA |
FITS E |
SHE_MOMENTSML_DEC |
Estimate of Declination of the galaxy center position deg |
NA |
FITS D |
SHE_MOMENTSML_DEC_ERR |
1-Sigma error on DEC |
NA |
FITS E |
SHE_MOMENTSML_RE |
Estimate of the size of the galaxy, as scale length for an elliptical profile |
NA |
FITS E |
SHE_MOMENTSML_RE_ERR |
1-sigma error on RE |
NA |
FITS E |
SHE_MOMENTSML_FLUX |
Estimate of galaxy flux in ADU |
NA |
FITS E |
SHE_MOMENTSML_FLUX_ERR |
1-sigma error on FLUX |
NA |
FITS E |
SHE_MOMENTSML_SNR |
Estimate of galaxy signal-to-noise ratio |
NA |
FITS E |
SHE_MOMENTSML_E1_W |
Weight for E1 estimate, if separate weights for E1 and E2 are adopted |
NA |
FITS E |
SHE_MOMENTSML_E2_W |
Weight for E2 estimate, if separate weights for E1 and E2 are adopted |
NA |
FITS E |
SHE_MOMENTSML_SERSIC_INDEX |
Sersic index of this object |
NA |
FITS E |
SHE_MOMENTSML_M11 |
Estimate of 11 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_M12 |
Estimate of 12 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_M21 |
Estimate of 21 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_M22 |
Estimate of 22 coefficient in tomographic multiplicative bias matrix (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_C1 |
Estimate of first component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_C2 |
Estimate of second component of tomographic additive bias (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_ALPHA1 |
Estimate of first component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
SHE_MOMENTSML_ALPHA2 |
Estimate of second component of tomographic PSF leakage (default is 0) |
NA |
FITS E |
All of these are optional, but at least one must exist. In each case, since the storage is a binary table, the table and its header will be stored in the first extension, with the primary HDU being a default, empty image. All of these catalogues will have the same format as those used by the ShearMeasurements data product, now using the “VAL_FLAGS” column in it to note the results of validation tests (flag definitions TBD).
This product is one of the final outputs of the Shear Analysis pipeline, and will be passed to the Shear Reconciliation pipeline.