The IRTS data coverage is represented as
color overlays (footprints) in the all-sky
image above, to indicate where IRTS made its
observations. This all-sky image is made from
the IRAS Sky Survey Atlas (
ISSA) data; the footprints
(positions) of IRTS
image fits files
using the FILM and FIRP instruments are
indicated as
red rectagles;
point
source positions from NIRS are shown as
yellow
dots, and positions of sources with
spectral information from MIRS are shown
as
cyan dots.
There are 1067 fits images from FILM and FIRP,
they are approximately 8 X 8 degrees, and lie
along the strip indicated in the red pattern on
the all-sky map. The 14294 point sources and
536 spectral sources fall on a narrower strip
of ~4 degrees, within the same regions of the
sky as the image data.