skyCellID   dimensionless I	INT 4 NA indentifier of the sky cell
projectionCellID 		INT 4 -999 indentifier of the projection cell
partitionKey 	 		BIGINT 8 -999 fgetPANobjID(skyCell_center_ra, skyCell_center_dec, zHeight)
regionID 	 		BIGINT 8 -999 region identifier in the Region table
raNEcorner   degrees            FLOAT  8 -999 ra of NE corner
decNEcorner  degrees            FLOAT  8 -999 dec of NE corner
raNWcorner   degrees            FLOAT  8 -999 ra of NE corner
decNWcorner  degrees            FLOAT  8 -999 dec of NE corner
raSEcorner   degrees            FLOAT  8 -999 ra of NE corner
decSEcorner  degrees            FLOAT  8 -999 dec of NE corner
raSWcorner   degrees            FLOAT  8 -999 ra of NE corner
decSWcorner  degrees            FLOAT  8 -999 dec of NE corner
