Conventions

Here we list some conventions which are used in this document.

	Nside		HEALPix resolution parameter — see the HEALPix Primer.
	$\mathbf{\theta}$		The polar angle or colatitude on the sphere, ranging from 0 at the North Pole to $\pi$ at the South Pole.
	$\mathbf{\phi}$		The azimuthal angle on the sphere, $\phi\in[0,2\pi[$.