stackImageID dimensionless   BIGINT   8 NA stack identifier
batchID      dimensionless   BIGINT   8 NA batch identifier
surveyID     dimensionless   TINYINT  1 NA survey flag identifier
filterID     dimensionless   TINYINT  1 NA filter number identifier
stackTypeID  dimensionless   TINYINT  1 0 stack type identifier
tessID       dimensionless   TINYINT  1       -1      ID mapping to tessellation names (eg, RINGS.V3, MD01.V3, etc)
projectionID dimensionless   SMALLINT 2       -999    valid values 0 - < 10000
skyCellID    dimensionless   TINYINT  1       255     valid values 0 - 143 (12x12 grid)
photoCalID   dimensionless   INT      4 NA photometry code
magSat       dimensionless   REAL     4 -999 saturation magnitude level
analysisVer  dimensionless   INT      4 -999 analysis version index x
expTime      seconds         REAL     4 -999 exposure time
nP2Images    dimensionless   SMALLINT 2 -999 number of P2 images contributing to this cell 
completMag   magnitudes      REAL     4 -999 95% completion level in mag
astroScat    dimensionless   REAL     4 -999 astrometric scatter for chip
photoScat    dimensionless   REAL     4 -999 photometric scatter for chip
nAstroRef    dimensionless   INT      4 -999 number of astrometric reference sources
nPhotomRef   dimensionless   INT      4 -999 number of photometric reference sources
psfModelID   dimensionless   VARCHAR(MAX) 8000 PSF model identifier
psfFWHM      arcsec	     REAL	4	-999	model psf full width at half maximum at chip center
psfWidMajor  arcsec	     REAL	4	-999	model PSF parameters at chip center
psfWidMinor  arcsec	     REAL	4	-999	model PSF parameters at chip center
psfTheta     degrees	     REAL	4	-999	model PSF parameters at chip center
photoZero    magnitudes      REAL 4 -999 local derived photometric zero point
photoColor   magnitudes      REAL 4 -999 local derived photometric color term
ctype1       alphanumeric    VARCHAR(MAX) 8000 name of astrometric projection in RA
ctype2       alphanumeric    VARCHAR(MAX) 8000 name of astrometric projection in DEC
crval1       degrees         FLOAT 8 -999 RA corresponding to reference pixel
crval2       degrees         FLOAT 8 -999 DEC corresponding to reference pixel
crpix1       dimensionless   FLOAT 8 -999 reference pixel value for RA
crpix2       dimensionless   FLOAT 8 -999 reference pixel value for DEC
cdelt1       deg/pixel       FLOAT 8 -999 scale factor for RA
cdelt2       deg/pixel       FLOAT 8 -999 scale factor for DEC
pc001001     dimensionless   FLOAT 8 -999 elements of rotation/Dcale matrix 
pc001002     dimensionless   FLOAT 8 -999 elements of rotation/Dcale matrix
pc002001     dimensionless   FLOAT 8 -999 elements of rotation/Dcale matrix
pc002002     dimensionless   FLOAT 8 -999 elements of rotation/Dcale matrix
dataRelease  dimensionless   TINYINT 1 NA Data release
