XTENSION= 'BINTABLE'           /Written by IDL:  Mon Dec 16 14:26:11 2019
BITPIX  =                    8 /
NAXIS   =                    2 /Binary table
NAXIS1  =                   12 /Number of bytes per row
NAXIS2  =              4364523 /Number of rows
PCOUNT  =                    0 /Random parameter count
GCOUNT  =                    1 /Group count
TFIELDS =                    2 /Number of columns
TFORM1  = '1K      '           /Integer*8 (long long integer)
TTYPE1  = 'PIXEL   '           /
TFORM2  = '1E      '           /Real*4 (floating point)
TTYPE2  = 'SIGNAL  '           /
PIXTYPE = 'HEALPIX '           / HEALPIX pixelisation
ORDERING= 'NESTED  '           / Pixel ordering scheme, either RING or NESTED
NSIDE   =                16384 / Healpix resolution parameter
OBJECT  = 'PARTIAL '           / Sky coverage, either FULLSKY or PARTIAL
OBS_NPIX=              4364523 / Number of pixel observed and recorded
INDXSCHM= 'EXPLICIT'           / indexing : IMPLICIT or EXPLICIT
GRAIN   =                    1 / GRAIN = 0: No index,
COMMENT         GRAIN =1: 1 pixel index for each pixel,
COMMENT         GRAIN >1: 1 pixel index for Grain consecutive pixels
COORDSYS= 'G       '           / Pixelization coordinate system
COMMENT         G = Galactic, E = ecliptic, C = celestial = equatorial
