FITS Headers
wmap_forered_qu_ninv_r4_3yr_Q_v2p1.fits
Primary Header
SIMPLE = T /FITS format
BITPIX = -32 /Dummy primary header
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 = '2006-09-19T19:42:14' /file creation date (YYYY-MM-DDThh:mm:ss UT)
FREQ = 'Q band ' /Frequency band
RELEASE = 'DR2 ' /WMAP Release
REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' /
COMMENT N-inverse covariance matrices for the Res 4 maps.
COMMENT This is a 2Nx2N matrix, ordered (Q, U).
COMMENT The map was constructed by coadding three single year maps.
COMMENT A small effect due to transmission imbalance between radiometers
COMMENT has been projected out of the inverse variances matrices as described
COMMENT in Jarosik, et.al. (2007)
END