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Glossary of WSA attributes
This Glossary alphabetically lists all attributes used in the SSA database(s) held in the WSA. If you would like to have more information about the schema tables please use the SSA Schema Browser (other Browser versions).

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

E
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
e_score	twomass_xsc	2MASS	extended score: 1(extended) < e_score < 2(point-like).	real	4			CODE_MISC
Ebmv	Source	SSA	The estimated foreground reddening at this position from Schlegel et al. (1998)	real	4	mag		PHOT_EXTINCTION_GAL
ellfit_flg	twomass_xsc	2MASS	ellipse fitting contamination flag.	smallint	2			CODE_MISC
ellipB	Source	SSA	Ellipticity of B band detection	real	4		-0.99999995e9	PHYS_ELLIPTICITY
ellipI	Source	SSA	Ellipticity of I band detection	real	4		-0.99999995e9	PHYS_ELLIPTICITY
ellipMax	Plate	SSA	Maximum object ellipticity in IAM file	real	4			PHYS_ELLIPTICITY
ellipMean	Plate	SSA	Mean object ellipticity in IAM file	real	4			PHYS_ELLIPTICITY
ellipMed	Plate	SSA	Median ellipticity in IAM file	real	4			PHYS_ELLIPTICITY
ellipMin	Plate	SSA	Minimum object ellipticity in IAM file	real	4			PHYS_ELLIPTICITY
ellipMode	Plate	SSA	Modal object ellipticity in IAM file	real	4			PHYS_ELLIPTICITY
ellipR1	Source	SSA	Ellipticity of R1 band detection	real	4		-0.99999995e9	PHYS_ELLIPTICITY
ellipR2	Source	SSA	Ellipticity of R2 band detection	real	4		-0.99999995e9	PHYS_ELLIPTICITY
emulpos	Plate	SSA	SuperCOSMOS emulsion position, eg. up	varchar	4			INST_PARAM
emulsion	Plate	SSA	Kodak emulsion type, eg. 103a-E, IIIa-J, IV-N	varchar	8			INST_PLATE_EMULSION
epoch	Plate	SSA	Epoch of observation	real	4	years		TIME_EPOCH
epoch	Source	SSA	Epoch of position (variance weighted mean epoch of available measures)	real	4	year		TIME_EPOCH
epochMax	Survey	SSA	Maximum epoch of observations	real	4	year		TIME_EPOCH
epochMin	Survey	SSA	Minimum epoch of observations	real	4	year		TIME_EPOCH
epTsys	Survey	SSA	Time system for epoch values in SurveyCatalog	varchar	16			NOTE
eqTsys	Plate	SSA	Time system of equinox, eg. BESSELIAN	varchar	12			NOTE
eqTsys	Survey	SSA	Time system for equinox in SurveyCatalog	varchar	16			NOTE
equinox	Plate	SSA	Equinox of raPnt and decPnt	real	4	year		TIME_EQUINOX
equinox	Survey	SSA	Equinox for positions in SurveyCatalog	real	4	year		TIME_EQUINOX
equinRef	Plate	SSA	Equinox of refstar positions	real	4			TIME_EQUINOX
err_ang	twomass_psc	2MASS	Position angle on the sky of the semi-major axis of the position uncertainty ellipse (East of North)	smallint	2	degrees		POS_POS-ANG
err_maj	twomass_psc	2MASS	Semi-major axis length of the one sigma position uncertainty ellipse	real	4	arcsec		EXTENSION_RAD
err_min	twomass_psc	2MASS	Semi-minor axis length of the one sigma position uncertainty ellipse	real	4	arcsec		EXTENSION_RAD
expLength	Plate	SSA	Exposure time	real	4	minutes		TIME_EXPTIME
ext_key	twomass_psc	2MASS	Unique identification number of the record in the XSC that corresponds to this point source.	int	4			ID_NUMBER
ext_key	twomass_xsc	2MASS	entry counter (key) number (unique within table).	int	4			ID_NUMBER