WMAP Effective Frequency Calculator

This tool calculates the effective frequency in GHz of each bandpass for a given antenna temperature spectral index. A correction is applied to account for drift in detector response over the life of the mission. The algorithm and underlying parameters come from Jarosik, etal, 2003, ApJS 145, p413.

Enter the desired indices above; the underlying parameters assume
indices between -3 and 1. Multiple indices may be entered by
separating them with spaces or commas.
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