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

Recommended download procedure for '.fits' or '.tar.gz' files:
right click on the file name and save. For more information on the use of Dataset IDs,
see the LAMBDA Products Overview.

WMAP Likelihood Software
Dataset Id
File Info
File Name
Likelihood Software With Data
987.74 MB
Likelihood Software Only, Without Data
35.24 KB

The full tarball is 987.74MB in size, and decompresses to 1706.21MB; the bulk of this space are the required data files. Please bear this in mind as you download this software.
Due to the size of the tarball, we recommend that you use a utility such as wget to download it. The wget command would be:
wget 'http://lambda.gsfc.nasa.gov/data/map/dr4/dcp/wmap_likelihood_full_v4p1.tar.gz'

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