Name | Unit | Data Type | Size | Default Value | Description |
---|
stackImageID | dimensionless | BIGINT | 8 | NA | Unique stack 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. |
stackTypeID | dimensionless | TINYINT | 1 | 0 | Stack type identifier. Details in the StackType table. |
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 stack. Necessary for converting listed fluxes and magnitudes back to measured ADU counts. |
nP2Images | dimensionless | SMALLINT | 2 | -999 | Number of input exposures/frames contributing to this stack. |
detectionThreshold | magnitudes | REAL | 4 | -999 | Reference magnitude for detection efficiency calculation. |
astroScat | dimensionless | REAL | 4 | -999 | Measurement of the calibration (not astrometric error) defined to be the sum in quadrature of the standard deviations in the X and Y directions. |
photoScat | dimensionless | REAL | 4 | -999 | Photometric scatter relative to reference catalog. |
nAstroRef | dimensionless | INT | 4 | -999 | Number of astrometric reference sources. |
nPhotoRef | dimensionless | INT | 4 | -999 | Number of photometric reference sources. |
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 stack. |
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. |
processingVersion | dimensionless | TINYINT | 1 | NA | Data release version. |