Cosmic Background Explorer/FIRAS
CMB Temperature Map
A file called FIRAS_TEMPERATURE_MAP_LOWF.FITS
contains maps of the CMB temperature and its uncertainty, parameters of
a dipole fit to the CMB temperature map (amplitude, direction, and associated
uncertainties), and the average CMB temperature measured by FIRAS (2.728
+/- 0.004 K). Download
the CMB temperature map.