CLASS 40 GHz 2016 - 2022 Observations (DR1)

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.

Scripts using wget and curl have been provided to facilitate bulk download of the data on this page:

wget download script   curl download script

Polarized Synchrotron Spectral Index Maps
Dataset Id
File Info
File Name
Delivery Date
beta_s (uniform dust model)
200 KB class_dr1_40GHz_beta_s_nside32-d0.fits
Fits Header
beta_s (varying dust model)
200 KB class_dr1_40GHz_beta_s_nside32-d1.fits
Fits Header

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. Andrew F. Ptak
LAMBDA Director: Dr. Thomas M. Essinger-Hileman
NASA Official: Dr. Thomas M. Essinger-Hileman
Web Curator: Mr. Michael R. Greason