healpy.pixelfunc.fit_dipole

healpy.pixelfunc.fit_dipole(m, nest=False, bad=-1.6375e+30, gal_cut=0)

Fit a dipole and a monopole to the map, excluding bad pixels.

Parameters:

m : float, array-like

the map to which a dipole is fitted and subtracted, accepts masked maps

nest : bool

if False m is assumed in RING scheme, otherwise map is NESTED

bad : float

bad values of pixel, default to UNSEEN.

gal_cut : float

pixels at latitude in [-gal_cut;+gal_cut] degrees are not taken into account

Returns:

res : tuple of length 2

the monopole value in res[0] and the dipole vector (as array) in res[1]