FITS Headers
wmap_forered_qumap_r4_yr2_W1_v3.fits
Primary Header
SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H DATE = '2008-01-31T12:00:00' //file creation date (YYYY-MM-DDThh:mm:ss UT) TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe OBJECT = 'ALL-SKY ' / Portion of sky given EQUINOX = 2000.0 / Equinox of coordinates COMMENT This file contains WMAP Polarization (Q and U) Reduced COMMENT Foreground Res 4 skymaps for the differencing assembly indicated by COMMENT the DA keyword. COMMENT The second year of data went into the map. REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' / DA = ' ' / Differencing Assembly FREQ = ' band ' /Frequency band STOKES = 'QU ' / i, q, or u RELEASE = 'DR3 ' /WMAP Release RESOLUTN= 4 /Resolution Index PIXTYPE = 'HEALPIX ' / Pixel algorithm ORDERING= 'NESTED ' / Ordering scheme NSIDE = 16 /Resolution Parameter NPIX = 3072 /Number of pixels FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 3071 /Last pixel (0 based) END
Stokes Maps
XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 8 / width of table in bytes NAXIS2 = 3072 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 2 / number of fields in each row COMMENT COMMENT *** End of mandatory fields *** COMMENT COMMENT COMMENT *** Column names *** COMMENT TTYPE1 = 'Q_POLARISATION ' / COMMENT COMMENT *** Column formats *** COMMENT TFORM1 = 'E ' / TUNIT1 = 'mK,thermodynamic' / TTYPE2 = 'U_POLARISATION ' / TFORM2 = 'E ' / TUNIT2 = 'mK,thermodynamic' / EXTNAME = 'Stokes Maps' / DATE = '2008-01-25T13:11:29' / PIXTYPE = 'HEALPIX ' / ORDERING= 'NESTED ' / NSIDE = 16 / FIRSTPIX= 0 / LASTPIX = 3071 / END
