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The SSC is a catalog of 12, 25, 60 and 100 micron photometric observations of
43,866 point-like sources detected fortuitiously in the IRAS Pointed
Observation program. The main objective was to take advantage of the
longer-than-normal integration time per source to extend the detection
threshold relative to that of the Point Source Catalog
(PSC); about three-fourths of the SSC sources do not appear in the PSC.
From 1813 Pointed Observation (PO) fields, the
effective sky coverage is 1108 sq deg. Relative to the PSC, the SSC
is characterized by enhanced sensitivity (by a factor of about 4) in all
four wavelength bands, excellent reliability in uncrowded fields, uneven sky
coverage and completeness, reduced positional accuracy, improved photometric
accuracy, and much greater depth in crowded fields at the expense
of reliability and accuracy. The SSC data processing, the catalog
format, and an analysis of the catalog are given by Kleinmann et al. (1986).
If a faint source of interest is not included in the SSC, you may wish to consult the Faint Source Catalog. This catalog is available from the ADC on the ADC Selected Astronomical Catalogs, Volume 1 CD-ROM and via the ADC FTP server. Reference: Version and release date: 1.0 |