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The IRAS Sky Survey Atlas (ISSA) is a
survey of 98% of the sky in four bands with
effective wavelengths of 12, 25, 60 and 100
µm, which was done during a ten month
period from January to November, 1983. The ISSA
covers the sky with 430 fields. Each field is a
12.5°× 12.5° region centered
every 10° along declination bands which
are spaced 10° apart.
If you are looking for the 'ISSA Image
Server and Catalog Overlays' service, it can be
found
here. That service provides single images
from the IRAS Sky Survey Atlas, overlaid with
Point Source and Faint Source Catalog
information. This Atlas serves multiple ISSA
fits images, covering a large area.
Also available are ISSA
image "cutouts"
using IRSA's
Cutouts Service, which is a general tool to create single or multiple small FITS
(and JPEGs) image cutouts of datasets archived at IRSA.
ISSA images are represented as overlays in
red on the
ISSA all-sky composite image above. Either type
in a coordinate or click on any red region to
get a close-up of the area; the size of the
search is adjustable.
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