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Obtaining full size NVSS FITS images

The form on this Web page allows specifying a celestial position for which the full 4x4 degree NVSS FITS image is desired. This avoids having to determine which file is desired.

The NVSS radio survey uses the NRAO Very Large Array telescope and covers the sky north of a declination of -40 degrees at a frequency of 1.4 GHz, a resolution of 45" and a limiting peak source brightness of about 2.5 mJy/beam. This survey is complete. For detailed general instructions click here or for more about a form entry click on its label.

Right Ascension:
as hh mm
as (+/-)dd mm ss
Equinox: B1900 B1950 J2000
Polarization: : I IQU

Other NVSS Resources

For details on the probability of the chance coincidence of an NVSS source within a given radius of an arbitrary position look here.

In publications using NVSS results please reference Condon, et al. 1998, AJ, 115, 1693; a preprint of this paper which describes the design and techniques of the NVSS is available here. The contents of the NVSS source catalog is described here. For very extensive searches or listing of large amounts of the catalog it may be best to obtain your own copy of the catalog (about 150 MByte) and the browsing software (Unix only). For the latest information and detailed descriptions of the NVSS survey see its home page. The NVSS Catalog browser will search the catalog for specified regions and return a list of sources found. A postage stamp server which returns FITS or jpeg files of limited regions from NVSS images is also available.

The (USA) National Radio Astronomy Observatory (NRAO) is operated by Associated Universities, Inc. and is a Facility of the (USA) National Science Foundation.

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Modified on Monday, 22-Jul-2002 16:58:04 EDT