WMAP DR3 Inverse Covariance Matrices for Individual Year I,Q,U,S Sky Maps Per Differencing Assembly
The data made available through this page has been updated. The most recent version of this data may be accessed through https://lambda.gsfc.nasa.gov/product/wmap/current/"
Recommended download procedure for '.fits' or '.tar.gz' files:
Singular Value Decomposed versions of these matrices are available further down this page.