Shear Measurement Input Product¶
Data product name¶
combclShear
Data product custodian¶
OU-SHE
Data model tag¶
(TBF for ML2A)
Name of the Schema file¶
(TBF for ML2A)
Schema documentation tag¶
(TBF for ML2A)
Data product elements¶
(TBF for ML2A)
Processing Element(s) creating/using the data product¶
TBD
Processing function using the data product¶
LE3
Detailed description of the data product¶
This input data product contains the Shear Measurement Product from OU-SHE.
KSBShearEstimates¶
The relevant columns for the present PF are the following:
Parameter name |
Brief description |
|---|---|
SOURCE_ID |
Galaxy ID |
FLAGS |
Set of bit flags based on fit status (definition TBD) |
FITCLASS |
Classification of object as galaxy (0), star(1), or unknown (2) |
G1_WORLD |
Estimate of first component of ellipticity, in (-ra,dec) coordinates |
G1_WORLD_ERR |
Error on G1_WORLD in estimating shear |
G2_WORLD |
Estimate of second component of ellipticity, in (-ra,dec) coordinates |
G2_WORLD_ERR |
Error on G2_WORLD in estimating shear |
G1G2_WORLD_COVAR |
Covariance of G1_WORLD and G2_WORLD in estimating shear |
G1_STACK |
Estimate of first component of ellipticity, in pixel coordinates of the stacked image |
G1_STACK_ERR |
Error on G1_STACK in estimating shear |
G2_STACK |
Estimate of second component of ellipticity, in pixel coordinates of the stacked image |
G2_STACK_ERR |
Error on G2_STACK in estimating shear |
G1_EXPOSURE |
Estimates of first component of ellipticity, in pixel coordinates of each exposure image |
G1_EXPOSURE_ERR |
Error on G1_EXPOSURE in estimating shear |
G2_EXPOSURE |
Estimate of second component of ellipticity, in pixel coordinates of each exposure image |
G2_EXPOSURE_ERR |
Error on G1_EXPOSURE in estimating shear |
RE |
Estimate of the size of the galaxy, as scale length for an elliptical profile |
RE_ERR |
Error on RE |
X_WORLD |
Estimate of x world position of the galaxy center |
ERRX2_WORLD_CORR |
Variance on X |
Y_WORLD |
Estimate of y world position of the galaxy center |
ERRY2_WORLD_CORR |
Variance on Y |
FLUX |
Estimate of galaxy flux in ADU |
FLUX_ERR |
Error on FLUX |
SNR |
Estimate of galaxy signal-to-noise ratio |
SNR_ERR |
Error on SNR |
LensMC¶
Columns:
Parameter name |
Brief description |
|---|---|
SOURCE_ID |
Galaxy ID |
FLAGS |
Set of bit flags based on fit status (definition TBD) |
FITCLASS |
Classification of object as galaxy (0), star(1), or unknown (2) |
G1 |
Estimate of first component of ellipticity |
G1_ICAL |
Internally calibrated estimate of first component of ellipticity |
G1_ERR |
1-Sigma error on G1 or G1_ICAL |
G1_CAL |
Calibrated estimate of first component of ellipticity |
G1_CAL_ERR |
1-Sigma error on G1_CAL |
G1_CHAIN |
MCMC chain of 200 samples for G1 |
G2 |
Unbiased estimate of second component of ellipticity as shear estimator |
G2_ICAL |
Internally calibrated estimate of second component of ellipticity |
G2_ERR |
1-Sigma error on G2 or G2_ICAL |
G2_CAL |
Calibrated estimate of second component of ellipticity |
G2_CAL_ERR |
1-Sigma error on G2_CAL |
G2_CHAIN |
MCMC chain of 200 samples for G2 |
RE |
Estimate of the size of the galaxy, as scale length for an elliptical profile |
RE_ERR |
1-Sigma error on RE |
RE_CHAIN |
MCMC chain of 200 samples for RE |
X_WORLD |
Estimate of Right Ascension of the galaxy center position |
X_WORLD_ERR |
1-Sigma error on RA |
X_WORLD_CHAIN |
MCMC chain of 200 samples for X_WORLD |
Y_WORLD |
Estimate of Declination of the galaxy center position |
Y_WORLD_ERR |
1-Sigma error on DEC |
Y_WORLD_CHAIN |
MCMC chain of 200 samples for DEC |
FLUX |
Estimate of galaxy flux in ADU |
FLUX_ERR |
1-Sigma error on FLUX |
FLUX_CHAIN |
MCMC chain of 200 samples for FLUX |
BULGE_FRAC |
Estimate of galaxy bulge fraction |
BULGE_FRAC_ERR |
1-Sigma error on BULGE_FRAC |
BULGE_FRAC_CHAIN |
MCMC chain of 200 samples for BULGE_FRAC |
SNR |
Estimate of galaxy signal-to-noise ratio |
SNR_ERR |
1-Sigma error on SNR |
SNR_CHAIN |
MCMC chain of 200 samples for SNR |
LR1_CHAIN |
MCMC chain of 200 samples for first-order correction likelihood ratio |
LR2_CHAIN |
MCMC chain of 200 samples for second-order correction likelihood ratio |
CHI2 |
Goodness of fit reduced chi-squared |
DOF |
Number of degrees of freedom |
MomentsMLShearEstimates¶
Columns:
Parameter name |
Fits Data type |
Brief description |
|---|---|---|
SOURCE_ID |
K |
Galaxy ID |
FLAGS |
K |
Set of bit flags based on fit status (definition TBD) |
FITCLASS |
I |
Classification of object as galaxy (0), star(1), or unknown (2) |
G1 |
E |
Unbiased estimate of first component of shear |
G1_ERR |
E |
Error on G1 in estimating shear |
G2 |
E |
Unbiased estimate of second component of shear |
G2_ERR |
E |
Error on G2 in estimating shear |
G1G2_COVAR |
E |
Covariance of G1 and G2 in estimating shear |
RE |
E |
Estimate of the size of the galaxy |
RE_ERR |
E |
Error on RE |
X_WORLD |
E |
Estimate of x world position of the galaxy center |
ERRX2_WORLD_CORR |
E |
Variance on X |
Y_WORLD |
E |
Estimate of y world position of the galaxy center |
ERRY2_WORLD_CORR |
E |
Variance on Y |
FLUX |
E |
Estimate of galaxy flux in ADU |
FLUX_ERR |
E |
Error on FLUX |
SNR |
E |
Estimate of galaxy signal-to-noise ratio |
SNR_ERR |
E |
Error on SNR |
REGAUSSShearEstimates¶
Columns:
Parameter name |
Fits Data type |
Brief description |
|---|---|---|
SOURCE_ID |
K |
Galaxy ID |
FLAGS |
K |
Set of bit flags based on fit status (definition TBD) |
FITCLASS |
I |
Classification of object as galaxy (0), star(1), or unknown (2) |
G1_WORLD |
E |
Estimate of first component of ellipticity, in (-ra,dec) coordinates |
G1_WORLD_ERR |
E |
Error on G1_WORLD in estimating shear |
G2_WORLD |
E |
Estimate of second component of ellipticity, in (-ra,dec) coordinates |
G2_WORLD_ERR |
E |
Error on G2_WORLD in estimating shear |
G1G2_WORLD_COVAR |
E |
Covariance of G1_WORLD and G2_WORLD in estimating shear |
G1_STACK |
E |
Estimate of first component of ellipticity, in pixel coordinates of the stacked image |
G1_STACK_ERR |
E |
Error on G1_STACK in estimating shear |
G2_STACK |
E |
Estimate of second component of ellipticity, in pixel coordinates of the stacked image |
G2_STACK_ERR |
E |
Error on G2_STACK in estimating shear |
G1_EXPOSURE |
E4 |
Estimates of first component of ellipticity, in pixel coordinates of each exposure image |
G1_EXPOSURE_ERR |
E4 |
Error on G1_EXPOSURE in estimating shear |
G2_EXPOSURE |
E4 |
Estimate of second component of ellipticity, in pixel coordinates of each exposure image |
G2_EXPOSURE_ERR |
E4 |
Error on G1_EXPOSURE in estimating shear |
X_WORLD |
E |
Estimate of x world position of the galaxy center |
ERRX2_WORLD_CORR |
E |
Variance on X |
Y_WORLD |
E |
Estimate of y world position of the galaxy center |
ERRY2_WORLD_CORR |
E |
Variance on Y |
FLUX |
E |
Estimate of galaxy flux in ADU |
FLUX_ERR |
E |
Error on FLUX |
SNR |
E |
Estimate of galaxy signal-to-noise ratio |
SNR_ERR |
E |
Error on SNR |