Description: Contains the metadata related to a sky-aligned distortion corrected warp image, upon which forced photometry is performed. The astrometric and photometric calibration of the warp image are listed.
Name
Unit
Data Type
Size
Default Value
Description
forcedWarpID
dimensionless
BIGINT
8
NA
Unique forced warp identifier.
batchID
dimensionless
BIGINT
8
NA
Internal database batch identifier.
surveyID
dimensionless
TINYINT
1
NA
Survey identifier. Details in the Survey table.
filterID
dimensionless
TINYINT
1
NA
Filter identifier. Details in the Filter table.
frameID
dimensionless
INT
4
NA
Frame/exposure identifier of the Frame associated with this warp.
ippSkycalID
dimensionless
INT
4
NA
IPP skycal identifier for the run that generated the positions for forced photometry.
stackMetaID
dimensionless
INT
4
NA
Identifier for the stack which yielded the positions for forced photometry.
tessID
dimensionless
TINYINT
1
0
Tessellation identifier. Details in the TessellationType table.
projectionID
dimensionless
SMALLINT
2
-1
Projection cell identifier.
skyCellID
dimensionless
TINYINT
1
255
Skycell region identifier.
photoCalID
dimensionless
INT
4
NA
Photometric calibration identifier. Details in the PhotoCal table.
analysisVer
dimensionless
VARCHAR(100)
100
IPP software analysis release version.
md5sum
dimensionless
VARCHAR(100)
100
IPP MD5 Checksum.
expTime
seconds
REAL
4
-999
Exposure time of the source frame/exposure for this warp image. Necessary for converting listed fluxes and magnitudes back to measured ADU counts.
recalAstroScatX
arcsec
REAL
4
-999
Measurement of the re-calibration (not astrometric error) in the X direction.
recalAstroScatY
arcsec
REAL
4
-999
Measurement of the re-calibration (not astrometric error) in the Y direction.
recalNAstroStars
dimensionless
INT
4
-999
Number of astrometric reference sources used in recalibration.
recalphotoScat
magnitudes
REAL
4
-999
Photometric scatter relative to reference catalog.
recalNPhotoStars
dimensionless
INT
4
-999
Number of astrometric reference sources used in recalibration.
psfModelID
dimensionless
INT
4
-999
PSF model identifier.
psfFWHM
arcsec
REAL
4
-999
Mean PSF full width at half maximum at image center.
psfWidMajor
arcsec
REAL
4
-999
PSF major axis FWHM at image center.
psfWidMinor
arcsec
REAL
4
-999
PSF minor axis FWHM at image center.
psfTheta
degrees
REAL
4
-999
PSF major axis orientation at image center.
photoZero
magnitudes
REAL
4
-999
Locally derived photometric zero point for this warp image.
ctype1
dimensionless
VARCHAR(100)
100
Name of astrometric projection in right ascension.
ctype2
dimensionless
VARCHAR(100)
100
Name of astrometric projection in declination.
crval1
degrees
FLOAT
8
-999
Right ascension corresponding to reference pixel.
crval2
degrees
FLOAT
8
-999
Declination corresponding to reference pixel.
crpix1
sky pixels
FLOAT
8
-999
Reference pixel for right ascension.
crpix2
sky pixels
FLOAT
8
-999
Reference pixel for declination.
cdelt1
degrees/pixel
FLOAT
8
-999
Pixel scale in right ascension.
cdelt2
degrees/pixel
FLOAT
8
-999
Pixel scale in declination.
pc001001
dimensionless
FLOAT
8
-999
Linear transformation matrix element between image pixel x and right ascension.
pc001002
dimensionless
FLOAT
8
-999
Linear transformation matrix element between image pixel y and right ascension.
pc002001
dimensionless
FLOAT
8
-999
Linear transformation matrix element between image pixel x and declination.
pc002002
dimensionless
FLOAT
8
-999
Linear transformation matrix element between image pixel y and declination.