Shear Measurements¶
Metadata¶
Data product name |
DpdSheMeasurements |
Data product custodian |
SHE |
Name of the Schema file |
|
Processing Element(s) creating/using the data product |
Creators:
Consumers: |
Processing function using the data product |
LE3 |
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 shear measurements fits tables from all three production methods: LensMC, MetaCal and MomentsML. This product will contain the following 3 catalog container objects, each pointing to a fits binary table:
lensMcShearMeasurements
MetaCalShearMeasurements
MomentsMlShearMeasurements
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.
Output Catalog¶
The output xml product points to 3 FITS binary catalogs. These fits catalogs will contain the following header keywords and columns:
Lens Mc Shear Measurements¶
HDU SheLensMcMeasurements: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
FITS_VER |
Table format version number |
string = 8.0.1 |
FITS_DEF |
Table format label |
string = she.lensMcMeasurements |
|
SFLAGVER |
Flags format version number |
string |
|
MHASH |
Model hash of simulations used as input |
string |
|
MSEED |
Model seed of simulations used as input |
integer |
|
NSEED |
Noise seed of simulations used as input |
integer |
|
OBS_ID |
Observation ID, to be present in measurements and validated measurements tables |
integer |
|
PNT_ID |
Pointing IDs, to be present in measurements and validated measurements tables |
integer |
|
DATE_OBS |
Dates observations were taken, to be present in measurements and validated measurements tables |
string |
|
TILE_ID |
Tile ID, to be present in reconciled measurements tables |
integer |
|
VALID |
0: Not tested; 1: Pass; -1: Fail |
string |
|
HDU SheLensMcMeasurements: 56 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
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 |
|
Meta Cal Shear Measurements¶
HDU SheMetaCalMeasurements: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
FITS_VER |
Table format version number |
string = 8.0.1 |
FITS_DEF |
Table format label |
string = she.metaCalMeasurements |
|
SFLAGVER |
Flags format version number |
string |
|
VALID |
0: Not tested; 1: Pass; -1: Fail |
string |
|
HDU SheMetaCalMeasurements: 22 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
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 |
|
Moments Ml Shear Measurements¶
HDU SheMomentsMlMeasurements: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
FITS_VER |
Table format version number |
string = 8.0 |
FITS_DEF |
Table format label |
string = she.momentsMlMeasurements |
|
SFLAGVER |
Flags format version number |
string |
|
MHASH |
Model hash of simulations used as input |
string |
|
MSEED |
Model seed of simulations used as input |
integer |
|
NSEED |
Noise seed of simulations used as input |
integer |
|
OBS_ID |
Observation ID, to be present in measurements and validated measurements tables |
integer |
|
PNT_ID |
Pointing IDs, to be present in measurements and validated measurements tables |
integer |
|
DATE_OBS |
Dates observations were taken, to be present in measurements and validated measurements tables |
string |
|
TILE_ID |
Tile ID, to be present in reconciled measurements tables |
integer |
|
VALID |
0: Not tested; 1: Pass; -1: Fail |
string |
|
HDU SheMomentsMlMeasurements: 39 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
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 |
|