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This is a catalog of 245,889 well-confirmed point sources,
i.e., sources with angular extents less than approximately 0.5', 0.5', 1.0',
and 2.0' in the in-scan direction at 12, 25, 60, and 100 µm,
respectively. Positions, flux densities, uncertainties, associations with
known astronomical objects and various cautionary flags are given for each
object. While two other complementary data sets - the
Working Survey Database and the
Point Source Reject Catalog - give information about point-like
sources, the information available in the Point Source Catalog should satisfy
almost all users. Away from confused regions of the sky, the survey is
complete to about 0.4, 0.5, 0.6, and 1.0 Jy at 12, 25, 60, and 100 µm
(cf. Faint Source Catalog). Typical position
uncertainties are about 2" to 6" in-scan and about 8" to 16"
cross-scan. The processing steps applied to detect and confirm point
sources, and the positional and photometric error analyses are
described in the Explanatory Supplement.
The sources appear in order of increasing (1950.0) right ascension.
Note: This catalog is also available from the Astronomical Data Center on the ADC Selected Astronomical Catalogs, Volume 1 CD-ROM and via the ADC FTP server. Version and release date: 2.1, 1989 July 25 |