FITS Headers
wmap_da_forered_iqumap_r9_7yr_W3_v4.fits
Primary Header
SIMPLE = T /FITS format
BITPIX = 16 /Dummy primary header
NAXIS = 0 /No data is associated with this header
EXTEND = T /Extensions may (will!) be present
RESOLUTN= 9 /Resolution Index
PIXTYPE = 'HEALPIX ' /Pixel algorigthm
ORDERING= 'NESTED ' /Ordering scheme
NSIDE = 512 /Resolution Parameter
NPIX = 3145728 /Number of pixels
FIRSTPIX= 0 /First pixel (0 based)
LASTPIX = 3145727 /Last pixel (0 based)
COMMENT This file contains WMAP Intensity and Polarization (I, Q, and U)
COMMENT skymaps for the differencing assembly indicated by the DA keyword.
COMMENT
TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe
COMMENT This file contains WMAP foreground reduced Intensity and Polarization (I
COMMENT Q, and U) Res 9 skymaps for the differencing assembly indicated by
COMMENT the DA keyword.
COMMENT Seven years of data went into the map
REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' //lambda.
STOKES = 'I,Q,U ' /
DA = 'W3 ' /WMAP Differencing Assembly
FREQ = 'W band ' /Frequency band
RELEASE = 'DR4 ' /WMAP Release
DATE = '2009-11-16T19:38:59' /file creation date (YYYY-MM-DDThh:mm:ss UT)
END
Stokes Maps
XTENSION= 'BINTABLE' /binary table extension
BITPIX = 8 /8-bit bytes
NAXIS = 2 /2-dimensional binary table
NAXIS1 = 16 /width of table in bytes
NAXIS2 = 3145728 /number of rows in table
PCOUNT = 0 /size of special data area
GCOUNT = 1 /one data group (required keyword)
TFIELDS = 4 /number of fields in each row
TTYPE1 = 'TEMPERATURE ' /
TFORM1 = 'E ' /
TUNIT1 = 'mK,thermodynamic' /
TTYPE2 = 'Q_POLARISATION ' /
TFORM2 = 'E ' /
TUNIT2 = 'mK,thermodynamic' /
TTYPE3 = 'U_POLARISATION ' /
TFORM3 = 'E ' /
TUNIT3 = 'mK,thermodynamic' /
TTYPE4 = 'N_OBS ' /
TFORM4 = 'E ' /
TUNIT4 = 'counts ' /
EXTNAME = 'Stokes Maps' /
DATE = '2009-11-16T19:38:59' /file creation date (YYYY-MM-DDThh:mm:ss UT)
PIXTYPE = 'HEALPIX ' /
ORDERING= 'NESTED ' /
NSIDE = 512 /
FIRSTPIX= 0 /
LASTPIX = 3145727 /
END