UKIDSS

UKIDSS was an infrared astronomical survey using UKIRT, begun in 2005. It is the overall name for five sub-surveys:

• LAS aka ULAS - large area survey, covering the same region as the Sloan Digital Sky Survey.
• GPS aka UGPS - galactic plane survey.
• GCS aka UGCS - galactic clusters survey.
• DXS aka UDXS - deep extragalactic survey.
• UDS aka UUDS - deep survey (concentrates on smaller area than UDXS).

The UDS field, used for the deep survey, has been used for subsequent surveys, such as Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS).