Output Product: E/B Convergence Maps for Small Field¶

Data Product Name¶

DpdTwoDMassConvergencePatch

Data Product Custodian¶

WLTWODMASS

Name of the Schema File¶

euc-le3-wl-twodmass-ConvergencePatch.xsd

Last edited for DPDD version¶

1.1

Processing Elements Creating / Updating / Using the Product¶

Creators:

LE3_2D_MASS_WL_KS

Consumers:

LE3_2D_MASS_WL_KS

Processing function using the data product¶

LE3_2D_MASS_WL_KS
Science Working Group

Proposed for inclusion in EAS/SAS¶

This product is proposed for inclusion in the SAS: Yes

This product is an internal product of SGS.

Data Product Elements¶

Header:: object of type sys:genericHeader
Data:: object of type wl2dmass:twoDMassCollectConvergencePatch
QualityFlags:: object of type dqc:sqfPlaceHolder
Parameters:: object of type ppr:genericKeyValueParameters

Detailed Description of the Data Product¶

This product contains 2D convergence maps (denoised and/or noisy), and/or SNR map for a patch.

This output product contains three optional FITS structures:

a noisy convergence map as a FITS data array (one redshift bin per HDU) containing the E/B modes for a patch and all redshift bins, the number of galaxies per pixel and with important input parameters as keywords. In particular, the DENTYPE keyword indicates that the data has not been denoised [NoisyConvergence xml tag]
a denoised convergence map as a FITS data array (one redshift bin per HDU) containing the denoised E/B modes for a patch and all redshift bins, the number of galaxies per pixel and with important input parameters as keywords. In particular, the DENTYPE keyword indicates that the data has been denoised [DenoisedConvergence xml tag]
a “NResamples” field to specify the number of samples that were used to compute the SNR maps [int]
a SNR map as a FITS data array (one redshift bin per HDU) containing the E/B modes SNR maps for a patch and all redshift bins, the number of galaxies per pixel and with important input parameters as keywords [SNRPatch xml tag]
an associated spatial footprint (see spatialFootprint here) [cot:spatialFootprint].

Noisy or denoised convergence maps¶

This FITS file is expected to contain the following keywords in the primary HDU, characterizing the important parameters of the product, such as the world coordinate system (see A&A 395, 1077-1122 (2002)):

WCSAXES = “2”: number of axes in World Coordinate System [int]
CRPIX1: pixel number of reference pixel in first dimension [double]
CRPIX2: pixel number of reference pixel in second dimension [double]
PC1_1: component (1,1) of the coordinate transformation matrix [double]
PC1_2: component (1,2) of the coordinate transformation matrix [double]
PC2_1: component (2,1) of the coordinate transformation matrix [double]
PC2_2: component (2,2) of the coordinate transformation matrix [double]
CDELT1: coordinate increment at reference point (1st dim) [double]
CDELT2: coordinate increment at reference point (2nd dim) [double]
CUNIT1: unit of first coordinate values (CRVAL, CDX_X) [string]
CUNIT2: unit of second coordinate value (CRVAL, CDX_X) [string]
CTYPE1: first parameter for reference (e.g. RA—TAN for right ascension in gnomonic projection) [string]
CTYPE2: second parameter for reference (e.g. DEC–TAN for declination in gnomonic projection) [string]
CRVAL1: first reference pixel value for CTYPE1 [double]
CRVAL2: second reference pixel value for CTYPE2 [double]
LONPOLE: native longitude of celestial pole [double]
LATPOLE: native latitude of celestial pole [double]
RADESYS: coordinate system (e.g. ‘FK5’) [string]
EQUINOX: equinox of celestial coordinate system (e.g. 2000) [string]
DATE-OBS: start of observation with format ‘yyyy-mm-ddThh:mm:ss.sss’ [string]
DATE-END: end of observation with format ‘yyyy-mm-ddThh:mm:ss.sss’ [string]

and software parameters:
SHE_SOFT: which SHE catalogue used [StringKeyword]
SOFTNAME: software used to create the product [string]
SOFTVERS: version of software [string]
PROJ: projection used (gnomonic implemented) [string]
PWIDTH: patch width [double]
PIXSIZE: physical size of the pixels in the patch (in arcmin) [double]
NITREDSH: number of iteration to compute reduced shear [int]
STDREDSH: standard deviation for Gaussian smoothing performed to compute the reduced shear (0 if no Gaussian smoothing) [double]
FDRREDSH: false discovery rate threshold used to compute the reduced shear [double]
NITINP: number of iteration for inpainting (0 if no inpainting) [int]
NSCINP: number of scales for inpainting (0 if no inpainting) [int]
VARPERSC: flag specifying if equal variance in/out masked area per scale [bool]
FBMODE: flag specifying if B-Mode forced to 0 in the gaps [bool]
ADDBORD: specify if border effect processing [bool]
DENTYPE: denoising type (e.g. Gaussian, name of third party software) [string]
GAUSSSTD: standard deviation for Gaussian filter denoising (0 if no Gaussian smoothing) [double]
FDRVAL: false discovery rate threshold [double]
NZBINS: number of redshift [int]
BAL_BINS: Balanced redshift bins or not [bool]

For the array in HDU (HDU= 1..N, one per redshift bin), the following keywords are specified for each hdu:

ZMIN: minimum of the redshift bin [double]
ZMAX: maximum of the redshift bin [double]
EXTNAME = “KAPPA_PATCH”

The image contains a 3 dimensional image containing 2D maps for E and B modes (noisy or denoised according to DENTYPE parameters) and an image with the number of galaxies per pixel in the redshift bin (can serve to derive a noise level or to identify zones with no galaxy measured where inpainting has been performed).

SNR maps¶

This FITS array is expected to contain the following keywords in the primary HDU, characterizing the important parameters of the product, such as the world coordinate system:

WCSAXES = “2”: number of axes in World Coordinate System [int]
CRPIX1: pixel number of reference pixel in first dimension [double]
CRPIX2: pixel number of reference pixel in second dimension [double]
PC1_1: component (1,1) of the coordinate transformation matrix [double]
PC1_2: component (1,2) of the coordinate transformation matrix [double]
PC2_1: component (2,1) of the coordinate transformation matrix [double]
PC2_2: component (2,2) of the coordinate transformation matrix [double]
CDELT1: coordinate increment at reference point (1st dim) [double]
CDELT2: coordinate increment at reference point (2nd dim) [double]
CUNIT1: unit of first coordinate values (CRVAL, CDX_X) [string]
CUNIT2: unit of second coordinate value (CRVAL, CDX_X) [string]
CTYPE1: first parameter for reference (e.g. RA—TAN for right ascension in gnomonic projection) [string]
CTYPE2: second parameter for reference (e.g. DEC–TAN for declination in gnomonic projection) [string]
CRVAL1: first reference pixel value for CTYPE1 [double]
CRVAL2: second reference pixel value for CTYPE2 [double]
LONPOLE: native longitude of celestial pole [double]
LATPOLE: native latitude of celestial pole [double]
DATE-OBS: start of observation with format ‘yyyy-mm-ddThh:mm:ss.sss’ [string]
DATE-END: end of observation with format ‘yyyy-mm-ddThh:mm:ss.sss’ [string]
RADESYS: Coordinate system (e.g. ‘FK5’) [string]
EQUINOX: equinox of celestial coordinate system (e.g. 2000) [string]

and software parameters:
SOFTNAME: software used to create the product [string]
SOFTVERS: version of software [string]
PROJ: projection used [string]
PWIDTH: Patch Width [double]
PIXSIZE: physical size of the pixels in the patch [double]
NITREDSH: number of iteration to compute reduced shear [int]
STDREDSH: standard deviation for Gaussian smoothing performed to compute the reduced shear (0 if no Gaussian smoothing) [double]
FDRREDSH: false discovery rate threshold used to compute the reduced shear [double]
NITINP: number of iteration for inpainting (0 if no inpainting) [int]
NSCINP: number of scale for inpainting (0 if no inpainting) [int]
VARPERSC: flag specifying if equal variance in/out masked area per scale [bool]
FBMODE: flag specifying if B-Mode forced to 0 in the gaps [bool]
ADDBORD: specify if border effect processing [bool]
DENTYPE: denoising type (e.g. Gaussian, name of third party software) [string]
GAUSSSTD: standard deviation for Gaussian smoothing (0 if no Gaussian smoothing) [double]
FDRVAL: false discovery rate threshold [double]
NZBINS: number of redshift bins [int]
BAL_BINS: Balanced redshift bins or not [bool]

and resampling parameters:
NRESAMPL: number of resampling of input dictionary [int]