The input for the detection batch is one IPP camera-stage smf file for a given exposure, as well as an associated DVO database from which to retrieve object, and other, IDs. One FITS file is generated for each exposure. The extensions are:

1 Primary extension
1 FrameMeta extension
1 ImageMeta extension per chip
1 Detection extension per chip
1 SkinnyObject extension per chip
1 ObjectCalColor extension per chip

So, 242 extensions in all, including the obligatory primary header. The 'object ID' is featured in the last three tables, and must remain unique across the exposure (it is generated within DVO). In the merged PSPS database, the primary key on the detections table is both the object ID and detection ID, meaning the the same object can appear in multiple, overlapping exposures as they will have different detection IDs.

Unresolved fields

PSPS field	PSPS type	PSPS Description	Comments
FrameMeta
cameraID	SHORT	camera identifier	1?
cameraConfigID	SHORT	camera configuration identifier
analysisVer	STRING	IPP software analysis release	need added to smf?
p1Recp	STRING	IPP phase 1 MD5 Checksum	need added to smf?
p2Recip	STRING	IPP phase 2 MD5 Checksum	need added to smf?
p3Recip	STRING	IPP phase 3 MD5 Checksum	need added to smf?
numPhotoRef	LONG	number of photometric reference sources
calibModNum	SHORT	calibration modification number	for future
dataRelease	BYTE	Data release	for future
ImageMeta
photoCalID	LONG	photometry reduction code identifier	will use IPP dvo.photcodes in PSPS init batch
bias	FLOAT	detector bias level (unit = ADU)	need added to smf?
biasScat	FLOAT	scatter in bias level (unit = ADU)	need added to smf?
numPhotoRef	LONG	number of photometric reference sources
psfModelID	LONG	PSF model identifier	need from smf?
detectorID	SHORT	identifier for actual CCD chip
calibModNum	SHORT	calibration modification number	for future
dataRelease	BYTE	Data release	for future
Detection
psfLikelihood	FLOAT	PSF likelihood	need in smf
crLikelihood	FLOAT	Likelihood the source is a cosmic ray	need added to smf?
historyModeNum	SHORT	modification number in the O-D association history	for future
dataRelease	BYTE	Data release when this detection was originally taken. Recalibrations do not affect this value.	for future
SkinnyObject
projectionCellID	LONG	projection cell identifier at discovery time	???
ObjectCalColor
calColor	FLOAT	color adopted for magnitude calculation (unit = mag)	for future
calColorErr	FLOAT	error in calibrating color (unit = mag)	for future