TABLE  nvssSource

This table contains brief descriptions of the parameters provided for each source in the NVSS catalogue. It contains 1773484 sources. Required constraints: Primary key is (seqNo)

Name	Type	Length	Unit	Description	Default Value	Unified Content Descriptor
seqNo	int	4		sequential object number		ID_NUMBER
ra	float	8	degrees	J2000 Celestial Right Ascension		POS_EQ_RA_MAIN
dec	float	8	degrees	J2000 Celestial Declination		POS_EQ_DEC_MAIN
field	varchar	8		Name of the original survey image field from which the component was derived.		ID_FIELD
xPos	real	4	pixels	X position (RA direction) of the radio source		POS_CCD_X
yPos	real	4	pixels	Y position (Dec direction) of the radio source		POS_CCD_Y
NVSS	varchar	14		Source name		ID_MAIN
e_RAs	real	4	s	Mean error on RA		ERROR
e_DEcs	real	4	arcsec	Mean error on Dec		ERROR
S14	real	4	mJy	Integrated 1.4GHz flux density of radio source		PHOT_FLUX_RADIO_1.4G
e_S14	real	4	mJy	Mean error on S14		ERROR
l_MajAxis	varchar	1		Limit flag on majAxis		CODE_LIMIT
majAxis	real	4	arcsec	Fitted (deconvolved) major axis of radio source		EXTENSION_FWHM_MAJ
l_MinAxis	char	1		Limit flag on minAxis		CODE_LIMIT
minAxis	real	4	arcsec	Fitted (deconvolved) minor axis of radio source		EXTENSION_FWHM_MIN
PA	real	4	degress	[-90, 90] Position angle of fitted major axis		POS_POS-ANG
e_majAxis	real	4	arcsec	Mean error on majAxis		ERROR
e_minAxis	real	4	arcsec	Mean error on minAxis		ERROR
e_PA	real	4	degrees	Mean error on PA		ERROR
f_resFlux	varchar	2		[PS* ] Residual Code		CODE_MISC
resFlux	real	4	mJy	Peak residual flux, in mJy/beam		PHOT_FLUX_RADIO_MISC
polFlux	real	4	mJy	Integrated linearly polarized flux density		PHOT_FLUX_LINEAR
polPA	real	4	degress	[-90,90] The position angle of polFlux		POS_POS-EQ
e_polFlux	real	4	mJy	Mean error on polFlux		ERROR
e_polPA	real	4	mJy	Mean error on polPA		ERROR
cx	float	8		unit vector of spherical co-ordinates		POS_EQ_X
cy	float	8		unit vector of spherical co-ordinates		POS_EQ_Y
cz	float	8		unit vector of spherical co-ordinates		POS_EQ_Z
htmID	bigint	8		Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates		POS_GENERAL
Total length		146