|
[Adapted from the Explanatory Supplement.]
As discussed in section V.H.6 of the Explanatory Supplement, regions
with more sources per sq. deg than the confusion limit in a given band
were processed according to more stringent rules to insure the
reliability of the data presented in the catalog. The regions so
processed were selected on a band-by-band basis depending on the number of
sources with high or moderate quality fluxes located within a 1 sq. deg bin in
ecliptic coordinates. Users of the Point Source
Catalog who want to know the identity of those regions may use
High Source Density Bins file, which lists bin numbers, a flag
called HSD which indicates which bands in a given bin were processed according
to high source density rules, the ecliptic coordinates of the centers
of the bins, and their lengths in ecliptic longitude. All bins have a
height of 1° in ecliptic latitude.
Reference:
Infrared Astronomical Satellite (IRAS) Catalogs and Atlases, vol. 1,
Explanatory Supplement, 1988, ed. C. Beichman, et al., NASA RP-1190
(Washington, DC: GPO)
Version and release date: 1984 Nov 16
|
