DSS2 NIR (XI+IS) HiPS

The Catalogs and Surveys Group of the Space Telescope Science Institute has digitized the photographic Sky survey plates from the Palomar and UK Schmidt telescopes to produce the "Digitized Sky Survey"(DSS). Each plate covers 6.5 x 6.5 degrees of the sky and have been digitized using a modified PDS microdensitometer. The DSS NIT HiPS is a combination of DSS2-XI and DSS2-IS. DSS2-XI north is the digitalization of the POSS-II N (1987-2002 - filter: IV-N +RG9) from Caltech, DSS2-IS south is the digitalization of the SERC-IS (1990-2002 - filter: IV-N +RG175). The all-sky HEALPix resampling has been done by the CDS with the help of CADC.