Wilkinson Microwave Anisotropy Probe

The data made available through this page has been updated. The most recent version of this data may be accessed through /product/map/current/

Product Name
Point Source Catalog


This is a catalog of 390 point sources detected in the five year WMAP sky maps independently from any previous surveys. The sources listed in the catalog were detected as ≥ 5 sigma peaks in WMAP maps that have been weighted by the square root of the number of observations and optimally filtered for point source detection. The position of each source is obtained by fitting a Gaussian profile plus a baseline to each detected peak. Of the 390 detected sources, 373 have one or more possible 5 GHz counterparts. Of the sources with no 5 GHz identification, some are close to the detection threshold and may be spurious. The catalog lists the following parameters for each source:

Cols 1 -- 2Right Ascension and Declination (2000)
Cols 3 -- 4Galactic Longitude and Latitude
Cols 5 -- 9WMAP Flux (Jy)
Cols 10 -- 14Flux Error (Jy)
Cols 15 -- 165 Ghz Identification
Col 17Flag for multiple 5 GHz identifications
Col 18WMAP DR1 Identification Number
Col 19WMAP Spectral Index
Col 20WMAP Spectral Index Error

A special point source catalog mask was used to exclude Galactic Plan and Magellanic cloud regions in the production of this catalog. See the masks description for more details regarding this mask.

Additional Information

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A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason