Pan-STARRS

Pan-STARRS (Panoramic Survey Telescope and Rapid Response System) is a system of telescopes continually observing the sky to identify near-Earth objects (NEOs). It is located at the Haleakala Observatory, Hawaii. The telescopes (PS1, Pan-STARRS 1 from 2010 and PS2 from 2014) are 1.8-meter Ritchey-Chrétien telescopes with 1.4-billion-pixel cameras (GPC for Gigapixel Camera), each with a 4.9 square degree field of view. Discoveries include near-Earth objects and other solar system bodies, variable stars and supernovae. The designator PSO is used for Pan-STARRS discoveries.

In addition to its NEO survey, Pan-STARRS has ongoing survey projects looking for various kinds of transients, which is possible because of its very large field of view. It has imaged the sky with a number of filters (some from the ugriz photometric system, some Pan-STARRS-specific), and specific data may refer to a filter, e.g., the ugriz R band.