FITS Headers
wmap_qumap_ninv_r4_yr4_V2_v3.fits
Primary Header
SIMPLE = T /FITS format
BITPIX = -32 /
NAXIS = 2 /Number of dimensions
NAXIS1 = 6144 /
NAXIS2 = 6144 /
EXTEND = T /Extensions may be present
RESOLUTN= 4 /Resolution Index
PIXTYPE = 'HEALPIX ' /Pixel algorigthm
ORDERING= 'NESTED ' /Ordering scheme
NSIDE = 16 /Resolution parameter
NPIX = 3072 /# pixels in the maps
DATE = '2008-01-03T11:30:00' /file creation date (YYYY-MM-DDThh:mm:ss UT)
DA = 'V2 ' /Differencing Assembly
FREQ = 'V band ' /Frequency band
RELEASE = 'DR3 ' /WMAP Release
TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe
REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' /
COMMENT N-inverse covariance matrix for the Res 4 maps for the
COMMENT frequence band indicated by the FREQ keyword.
COMMENT This is a 2Nx2N matrix, ordered (Q, U).
The fourth year of data went into the matrix.
END