We are going to provide a destriped, point-source subtracted Haslam 408 MHz map, and a Beta_synch spectral index map based upon the ratio of Haslam and Reich and Reich (North) or Jonas etal (South).
This map should be taken as an UPPER LIMIT on the synchrotron emission at frequencies of interest for CMBR work. In most cases, its primary use will be to show that synchrotron emission is negligable.
More soon!