An Astronomical Survey is a project to gather astronomical data over some portion of the sky, in some cases, all. It may be an image or set of images. Currently, many are done automatically.
The targets may be based upon appearance (e.g., portion of the spectrum at which the object is evident), based upon object type (e.g., galaxies), or may be some aspect of Cosmic Background Radiation (CBR). It can result in an associated Astronomical Catalog and Survey-based Designator.
Surveys are naturally Magnitude-limited, and it is now common for a specific magnitude limit is adhered to as much as possible, to allow for accommodating the Malmquist Bias and similar issues. The magnitude may be listed as a letter indicating the Passband, e.g., k = 19.0 for an Apparent Magnitude (m) of 19 in the K Band.
Arecibo Occultation Survey (AO)
Bologna Survey of Radio Sources
Becker, White, and Edwards Catalog (BWE)
Cosmic Lens All-Sky Survey (CLASS)
Conditional Stellar Mass Function (CSMF)
Extended Groth Strip (EGS)
87GB Catalog of Radio Sources (87GB)
Faint Infrared Grism Survey (FIGS)
Green Bank 300ft Telescope (GB300)
Green Bank 6-cm Radio Source Catalog (GB6)
Hawaii K-Band Galaxy Survey
Ohio Radio Survey
Parkes Catalog (PKS)
Parkes-MIT-NRAO Surveys (PMN)
Rosat Bright Survey (RBS)
RASS/Green Bank Catalog (RGB)
Subaru Deep Field (SDF)
Subaru XMM-Newton Deep Survey (SXDS)
Texas Survey of Radio Sources at 365 MHz (TXS)