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 JPEG) 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.