/ftp/cats/2/156A



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II/156A     IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	main.dat assoc.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/156A
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drwxr-xr-x 351 cats archive 8192 Mar 25 10:13 [Up] drwxr-xr-x 2 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 468 Dec 19 2022 .message -r--r--r-- 1 cats archive 11550 Jan 30 2009 ReadMe -r--r--r-- 1 cats archive 3811 Mar 4 1993 SIMPLE.fih -r--r--r-- 1 cats archive 612 Jan 30 2009 Type.htx -rw-r--r-- 1 cats archive 3021 Jan 30 2009 +footg5.gif -rw-r--r-- 1 cats archive 39893 Jan 30 2009 +footg8.gif -r--r--r-- 1 cats archive 4385161 Feb 24 1993 assoc.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 4423 Mar 4 1993 assoc.fih -r--r--r-- 1 cats archive 34015 Feb 24 1993 fsc.txt -r--r--r-- 1 cats archive 9313723 Feb 24 1993 main.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 13117 Jan 29 1994 main.fih -r--r--r-- 1 cats archive 12593 Mar 4 1993 meaning.txt -r--r--r-- 1 cats archive 2445 Dec 2 1993 tofits.sh
Beginning of ReadMe : II/156A IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989) ================================================================================ IRAS Faint Source Catalog, |b| > 10 Degrees, Version 2.0 Moshir, M., Copan, G., Conrow, T., McCallon, H., Hacking, P., Gregorich, D., Rohrbach, G., Melnyk, M., Rice, W., Fullmer, L., and Chester, T.J. <Infrared Processing and Analysis Center (1989)> =1990IRASF.C......0M ================================================================================ ADC_Keywords: Infrared sources ; Photometry, infrared ; Surveys Mission_Name: IRAS Description: The Faint Source Survey (FSS) is the definitive Infrared Astronomical Satellite data set for faint point sources. The FSS was produced by point-source filtering the individual detector data streams and then coadding those data streams using a trimmed-average algorithm. The resulting images, or plates, give the best estimate from the IRAS survey data of the point source flux density at every surveyed point of the sky. The Faint Source Catalog (FSC) is a compilation of the sources extracted from the FSS plates that have met reasonable reliability requirements. Averaged over the whole catalog, the FSC is at least 98.5% reliable at 12 and 25 microns, and  94% at 60 microns. For comparison, the IRAS Point Source Catalog (PSC) is >99.997% reliable, but the sensitivity of the FSC exceeds that of the PSC by about a factor of 2.5. The FSC contains data for 173,044 point sources in unconfused regions with flux densities typically above 0.2 Jy at 12, 25, and 60 microns, and above 1.0 Jy at 100 microns. The FSS plates are somewhat more sensitive but less reliable than the FSC; typically, only sources with SNR>5-6 in the plates are contained in the FSC. Sources with SNR>3 but which do not meet the reliability requirements of the FSC are catalogued in the Faint Source Reject File (FSR, Cat. II/275). The data products, the processing methods used to produce them, results of an analysis of these products, and cautionary notes are given in the Explanatory Supplement to the IRAS Faint Source Survey (see references in fsc.txt).