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
TB & EB Power Spectra


The TB and EB power spectra are computed using a pseudo-Cl estimator for the region outside the P06 mask in P and outside the Kp2 mask in T. The combined foreground-cleaned Q and V band maps are used for P, and the combined foreground-cleaned V and W band maps are used for T. The P data are weighted by N-1 for l<16, and by Nobs for l>16. The T data are flat weighted.

The data are provided as a table containing the following three columns:

  • the multipole moment l
  • the power spectrum in units of uK2
  • the corresponding diagonal elements of the covariance matrix

The diagonal elements provide an estimate of the error, but should not be used as exact error bars. The complete Fisher matrix should be used for that purpose.

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