HIPASS

HIPASS (for HI Parkes All Sky Survey) was an astronomical survey if HI emissions (21-cm line) over all of the celestial sphere that Parkes Observatory can observe, about 70% of the sky, carried out using the Parkes 64m Telescope. Discoveries include galaxies and HI regions. Among the astronomical catalogs produced, of galaxies identified by their HI emissions:

• HICAT - "HIPASS catalog" (southern hemisphere).
• NHICAT - "Northern HIPASS catalog" (northern extension to the survey, covering to +30°).
• HIPASS BGC - "bright galaxy catalog" (1000 galaxies selected for brightness).

HI Jodrell All-Sky Survey (HIJASS) was an analogous survey to cover the rest of the northern hemisphere.