A
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
a	twomass_psc	2MASS	Catalog identifier of an optical source from either the Tycho 2 or USNO-A2.0 catalog that falls within ~5" of the TWOMASS source position.	varchar	1			ID_ALTERNATIVE
aI	Detection	PSSA	Semi-major axis of intensity-weighted fitted ellip.	real	4	microns		EXTENSION_RAD
aI	Detection	SSA	Semi-major axis of intensity-weighted fitted ellip.	real	4	microns		EXTENSION_RAD
air_temp	twomass_scn	2MASS	Air temperature at beginning of scan.	real	4	degC		PHYS_TEMP_MISC
air_temp	twomass_sixx2_scn	2MASS	air temperature (deg C) at beginning of scan	real	4	degC
airm	twomass_scn	2MASS	Airmass at beginning of scan.	real	4			PHOT_ATM_AIRMASS
airm	twomass_sixx2_scn	2MASS	beginning airmass of scan	real	4
anom	twomass_scn	2MASS	Special flag indicating whether or not an unusual problem was found in the Atlas Images for this scan.	smallint	2			CODE_MISC
anom	twomass_sixx2_scn	2MASS	entry in coadd anomaly table (0:not found|1:found)	smallint	2
ap1	Detection	PSSA	Area above 1st areal profile threshold	int	4	pixels		EXTENSION_AREA
ap1	Detection	SSA	Area above 1st areal profile threshold	int	4	pixels		EXTENSION_AREA
ap2	Detection	PSSA	Area above 2nd areal profile threshold	int	4	pixels		EXTENSION_AREA
ap2	Detection	SSA	Area above 2nd areal profile threshold	int	4	pixels		EXTENSION_AREA
ap3	Detection	PSSA	Area above 3rd areal profile threshold	int	4	pixels		EXTENSION_AREA
ap3	Detection	SSA	Area above 3rd areal profile threshold	int	4	pixels		EXTENSION_AREA
ap4	Detection	PSSA	Area above 4th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap4	Detection	SSA	Area above 4th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap5	Detection	PSSA	Area above 5th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap5	Detection	SSA	Area above 5th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap6	Detection	PSSA	Area above 6th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap6	Detection	SSA	Area above 6th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap7	Detection	PSSA	Area above 7th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap7	Detection	SSA	Area above 7th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap8	Detection	PSSA	Area above 8th areal profile threshold	int	4	pixels		EXTENSION_AREA
ap8	Detection	SSA	Area above 8th areal profile threshold	int	4	pixels		EXTENSION_AREA
apParam	Plate	PSSA	Areal profile parameter	real	4			REDUCT_PARAM
apParam	Plate	SSA	Areal profile parameter	real	4			REDUCT_PARAM
area	Detection	PSSA	Area within detection isophote	int	4	pixels		EXTENSION_AREA
area	Detection	SSA	Area within detection isophote	int	4	pixels		EXTENSION_AREA
areaCut	Plate	PSSA	Minimum area of detected object	tinyint	1	pixels		NUMBER
areaCut	Plate	SSA	Minimum area of detected object	tinyint	1	pixels		NUMBER
areaMax	Plate	PSSA	Maximum object area in IAM file	int	4	pixels		EXTENSION_AREA
areaMax	Plate	SSA	Maximum object area in IAM file	int	4	pixels		EXTENSION_AREA
areaMin	Plate	PSSA	Minimum object area in IAM file	int	4	pixels		EXTENSION_AREA
areaMin	Plate	SSA	Minimum object area in IAM file	int	4	pixels		EXTENSION_AREA
astResidX	Plate	PSSA	Residual of astrometric fit in X	real	4	arcsec		FIT_RESIDUAL
astResidX	Plate	SSA	Residual of astrometric fit in X	real	4	arcsec		FIT_RESIDUAL
astResidY	Plate	PSSA	Residual of astrometric fit in Y	real	4	arcsec		FIT_RESIDUAL
astResidY	Plate	SSA	Residual of astrometric fit in Y	real	4	arcsec		FIT_RESIDUAL
aU	Detection	PSSA	Semi-major axis of unweighted fitted ellipse	real	4	microns		EXTENSION_RAD
aU	Detection	SSA	Semi-major axis of unweighted fitted ellipse	real	4	microns		EXTENSION_RAD
aXmax	Plate	PSSA	SuperCOSMOS XMAX of measured area	real	4	microns		POS_PLATE_X
aXmax	Plate	SSA	SuperCOSMOS XMAX of measured area	real	4	microns		POS_PLATE_X
aXmin	Plate	PSSA	SuperCOSMOS XMIN of measured area	real	4	microns		POS_PLATE_X
aXmin	Plate	SSA	SuperCOSMOS XMIN of measured area	real	4	microns		POS_PLATE_X
aYmax	Plate	PSSA	SuperCOSMOS YMAX of measured area	real	4	microns		POS_PLATE_Y
aYmax	Plate	SSA	SuperCOSMOS YMAX of measured area	real	4	microns		POS_PLATE_Y
aYmin	Plate	PSSA	SuperCOSMOS YMIN of measured area	real	4	microns		POS_PLATE_Y
aYmin	Plate	SSA	SuperCOSMOS YMIN of measured area	real	4	microns		POS_PLATE_Y