COBE DIRBE Products
Beam Profile Maps
The DIRBE beam profiles are provided in a set of 16 FITS (image) files, one file for each of the 10 full intensity bands, plus `B' and `C' polarization channels for the three short-wavelength bands. As explained in the DIRBE Explanatory Supplement, the beam profile in bands 1 - 4 changed slightly with time during the mission; the FITS files for these bands each contain three beam maps corresponding to three time intervals. The Beam Profile Maps are on line and will later be provided on CD-ROM.