WMAP Effective Frequency Calculator

This tool calculates the effective frequency in GHz of each bandpass for a given spectral index. 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. David T. Chuss
NASA Official: Dr. David T. Chuss
Web Curator: Michael R. Greason