The VLA FIRST (Faint Images of the Radio Sky at Twenty-centimeters) is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North Galactic Cap. The FIRST home page has details of the instrumentation, status of the project, and data available. Currently about 5000 images of approximately .775x.58 degrees are available.

These FIRST data have been retrieved from the FIRST FTP archive at the Space Telescope Science Institute.

The FIRST survey is included on the SkyView High Resolution Radio Coverage map. This map shows coverage on an Aitoff projection of the sky in equatorial coordinates. Provenance: The FIRST project team: R.J. Becker, D.H. Helfand, R.L. White M.D. Gregg. S.A. Laurent-Muehleisen.. This is a service of NASA HEASARC.