As an alternative to using reference positions on the sky, these checkboxes permit the spectrum of the cosmic microwave background radiation (CMBR) to be subtracted from the spectrum at the on-source position.
The parameters of the monopole and dipole terms adopted for the CMBR are as follows:
Monopole intensity: 2.728 K Dipole intensity: 3.372 mK Coordinates of pole: 264.14d, 48.26d (Galactic)These are taken from Fixsen et al. (1996).
The monopole and/or dipole checkboxes override any specification of reference positions.