Back to ippToPsps main page

Object batches

Object batches are generated from the IPP for objects that have set for the year and that have been fully processed by the IPP. Data is taken entirely from DVO FITS files, specifically:

• cpt file: contains ..., definition here​
• cps file: contains mean mags etc definition here​

One PSPS batch represents one DVO 'region', eg these files

s3000/7471.10.cps
s3000/7471.10.cpt

would be used to create an object batch for this DVO region.

PSPS tables

1 Object extension

The full table definitions can be seen here

Current IPP to PSPS mappings

Object
ODM attribute	units	Data type	Default	Description	IPP source	IPP variable/notes
objID	unknown	BIGINT	0	ODM object identifier index	cpt file	EXT_ID
ippObjID	unknown	BIGINT	0	IPP object number	cpt file	CAT_ID*1000000000 + OBJ_ID
projectionCellID	unknown	INT	-999	projection cell identifier at discovery time
htmID	unknown	BIGINT	0	HTM index		to be DROPPED from table
zoneID	unknown	INT	0	Zone index		to be DROPPED from table
stackVer	unknown	SMALLINT	-999 -	static stack version number
objInfoFlag	unknown	BIGINT	-999	flag indicating odd properties
varFlag	unknown	TINYINT	0	variable in difference image detections
surveyID	unknown	TINYINT	255	Survey ID
ra	degree	FLOAT	0	Right Ascension	cpt file	RA - where this is the RA at the reference epoch. Defaults to RA in stack if not seen in frames
dec	degree	FLOAT	0	Declination	cpt file	DEC - where this is the Dec at the reference epoch. Defaults to Dec in stack if not seen in frames
raErr	arcsec	REAL	0.0	Right Ascension error	cpt file	RA_ERR
decErr	arcsec	REAL	0.0	Declination error	cpt file	DEC_ERR
cx	unknown	FLOAT	0	Cartesian x		populated during PSPS merge
cy	unknown	FLOAT	0	Cartesian y		populated during PSPS merge
cz	unknown	FLOAT	0	Cartesian z		populated during PSPS merge
lambda	degree	FLOAT	-999	ecliptic longitude		populated during PSPS merge
beta	degree	FLOAT	-999	ecliptic latitude		populated during PSPS merge
l	degree	FLOAT	-999	galactic longitude		populated during PSPS merge
b	degree	FLOAT	-999	galactic latitude		populated during PSPS merge
lsg	unknown	FLOAT	-999	supergalactic longitude		populated during PSPS merge
bsg	unknown	FLOAT	-999	supergalactic latitude		populated during PSPS merge
nDetections	unknown	SMALLINT	-999	total number of detection measurements in all filters	cpt file	NMEASURE
raMean	degree	FLOAT	-999	mean RA of object		if only found in a stack, then left unpopulated
decMean	degree	FLOAT	-999	mean DEC of object		if only found in a stack, then left unpopulated
raMeanErr	arcsec	REAL	-999	estimated error in raMean		see above
decMeanErr	arcsec	REAL	-999	estimated error in decMean		see above
ng	unknown	SMALLINT	-999	number of measures in g filter	cps file	NCODE ("number of detections in band")
gMeanMag	mag	REAL	-999	mean g magnitude	cps file	MAG (the AB magnitude)
gMeanFlux	mag	REAL	-999	mean g flux		in Jansky (Jy)
gMeanMagErr	mag	REAL	-999	estimated error of g magnitude mean	cps file	MAG_ERR
gMeanFluxErr	mag	REAL	-999	estimated error of g flux mean
gMin	mag	REAL	-999	minimum g magnitide
gMax	mag	REAL	-999	maximum g magnitude
repeat above block for filters r, i, z, y and w
grMeanColor	mag	REAL	-999	g-r color from gMean & rMean	cps file	gMeanMag - rMeanMag
riMeanColor	mag	REAL	-999	r-i color from rMean & iMean	cps file	rMeanMag - iMeanMag
izMeanColor	mag	REAL	-999	i-z color from iMean & zMean	cps file	iMeanMag - zMeanMag
zyMeanColor	mag	REAL	-999	z-y color from zMean & yMean	cps file	zMeanMag - yMeanMag
grMeanColorErr	mag	REAL	-999	Estimated error in g-r color from gMean & rMean	cps file	gMeanMagErr - rMeanMagErr
riMeanColorErr	mag	REAL	-999	Estimated error in r-i color from rMean & iMean	cps file	rMeanMagErr - iMeanMagErr
izMeanColorErr	mag	REAL	-999	Estimated error in i-z color from iMean & zMean	cps file	iMeanMagErr - zMeanMagErr
zyMeanColorErr	mag	REAL	-999	Estimated error in z-y color from zMean & yMean	cps file	zMeanMagErr - yMeanMagErr
gMagBest	mag	REAL	-999	g magnitude from stack frames
gModID	unknown	SMALLINT	-999	index of which g model magnitude was used from stack
rMagBest	mag	REAL	-999	r magnitude from stack frames
rModID	unknown	SMALLINT	-999	index of which r model magnitude was used from stack
iMagBest	mag	REAL	-999	i magnitude from stack frames
iModID	unknown	SMALLINT	-999	index of which i model magnitude was used from stack
zMagBest	mag	REAL	-999	z magnitude from stack frames
zModID	unknown	SMALLINT	-999	index of which z model magnitude was used from stack
yMagBest	mag	REAL	-999	y magnitude from stack frames
yModID	unknown	SMALLINT	-999	index of which y model magnitude was used from stack
grColor	unknown	REAL	-999	g-r color from gmag and rmag
riColor	unknown	REAL	-999	r-i color from rmag and imag
izColor	unknown	REAL	-999	i-z color from imag and zmag
zyColor	unknown	REAL	-999	z-y color from zmag and ymag
sgSep	unknown	REAL	-999	star/galaxy separator - true if any one color is		represents fraction of time detections were 'extended' in P2s
consistencyFlag	unknown	SMALLINT	0	Value computed from associated detections, it is originally given by IPP and should agree with the ODM validation
dataRelease	unknown	TINYINT	0	Data release
updated	unknown	INT	-999	MJD of last update
updated	unknown	INT	-999	MJD of last update