*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
VIII/90 ==OBSOLETE version of Catalogue==
17-May-2015: (by Francois Ochsenbein) See VIII/92
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VIII/90
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
drwxr-xr-x 112 cats archive 4096 Nov 7 15:27 [Up]
drwxr-xr-x 3 cats archive 4096 Jan 13 2023 [TAR file]
-rw-r--r-- 1 cats archive 394 Dec 19 2022 .message
-rw-r--r-- 1 cats archive 50 May 17 2015 =obsolete=
-r--r--r-- 1 cats archive 12671 Nov 16 2012 ReadMe
-rw-r--r-- 1 cats archive 1689 Oct 9 2012 +footg5.gif
-rw-r--r-- 1 cats archive 12684 Oct 9 2012 +footg8.gif
-r--r--r-- 1 cats archive 41651894 Sep 25 2012 first12.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :VIII/90 The FIRST Survey Catalog, Version 12Feb16 (Becker+ 2012)
================================================================================
The FIRST Survey Catalog, Version 2012 Feb
Becker R.H., Helfand D.J., White R.L., Gregg M.D., Laurent-Muehleisen S.A.
<Astrophys. J. 475, 479 (1997)>
=1997ApJ...475..479W
=2012yCat.8090....0B
================================================================================
ADC_Keywords: Radio sources ; Surveys
Description:
The Faint Images of the Radio Sky at Twenty centimeters (FIRST) began
in 1993. It uses the VLA (Very Large Array, a facility of the National
Radio Observatory (NRAO)) at a frequency of 1.4GHz, and it is slated
to 10,000 deg^2^ of the North and South Galactic Caps, to a
sensitivity of about 1mJy with an angular resolution of about 5''. The
images produced by an automated mapping pipeline have pixels of
1.8'', a typical rms of 0.15mJy, and a resolution of 5''; the images
are available on the Internet (see the FIRST home page at
http://sundog.stsci.edu/ for details). The source catalogue is derived
from the images.
This catalog from the 1993 through 2011 observations contains 946,464
sources from the north and south Galactic caps. It covers a total of
10,635 square degrees of the sky (8444 square degrees in the north and
2191 square degrees in the south.)
The catalog format differs from the previous version: The contents of
the sidelobe flag column has changed to a sidelobe probability
estimate, and columns have been added with information on optical and
infrared counterparts from the SDSS and 2MASS catalogs. There is no
GSC2 information in this version.