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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

N
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
n_blank	twomass_xsc	2MASS	number of blanked source records.	smallint	2			NUMBER
n_ext	twomass_scn	2MASS	Number of regular extended sources detected in scan.	int	4			NUMBER
n_sub	twomass_xsc	2MASS	number of subtracted source records.	smallint	2			NUMBER
name	FieldSystem	SSA	The name of the system, eg. "ESO/SRC", "POSS-I" etc.	varchar	32			NOTE
nCalCoeffs	Plate	SSA	No. of photometric calibration coefficients	tinyint	1			FIT_PARAM_VALUE
ndet	twomass_psc	2MASS	Frame detection statistics.	varchar	6			NUMBER
night_key	twomass_xsc	2MASS	key to night data record in "scan DB".	smallint	2			ID_NUMBER
nominalDec	Field	SSA	Nominal field centre Dec	float	8	degrees		POS_EQ_DEC_MAIN
nominalRA	Field	SSA	Nominal field centre RA	float	8	degrees		POS_EQ_RA_MAIN
nopt_mchs	twomass_psc	2MASS	The number of USNO-A2.0 or Tycho 2 optical sources found within a 5" radius of the TWOMASS position.	smallint	2			NUMBER
nParents	Plate	SSA	No. of parent objects detected on plate	int	4			NUMBER
Nplates	Source	SSA	No. of plates used for this proper motion measurement	tinyint	1			NUMBER
nSteps	Plate	SSA	No. of intensity calibration wedge steps	tinyint	1			INST_PARAM
numFields	Survey	SSA	No. of fields in the survey	int	4			NUMBER