FITS Headers
wmap_iqusmap_r9_yr6_Q1_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, U, and S) COMMENT Res 9 skymaps for the differencing assembly indicated by COMMENT the DA keyword. COMMENT The sixth year of data went into the map. DATE = '2009-06-22T19:40:46' /file creation date (YYYY-MM-DDThh:mm:ss UT) TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' / STOKES = 'IQUS ' / DA = 'Q1 ' /WMAP Differencing Assembly FREQ = 'Q band ' /Frequency band RELEASE = 'DR4 ' /WMAP Release END
Stokes Maps
XTENSION= 'BINTABLE' /binary table extension BITPIX = 8 /8-bit bytes NAXIS = 2 /2-dimensional binary table NAXIS1 = 20 /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 = 5 /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 = 'SPUR_SIGNAL ' / TFORM4 = 'E ' / TUNIT4 = 'mK,thermodynamic' / TTYPE5 = 'N_OBS ' / TFORM5 = 'E ' / TUNIT5 = 'counts ' / EXTNAME = 'Stokes Maps' / DATE = 0 / PIXTYPE = 'HEALPIX ' / ORDERING= 'NESTED ' / NSIDE = 512 / FIRSTPIX= 0 / LASTPIX = 3145727 / END
Weight Arrays
XTENSION= 'BINTABLE' /binary table extension BITPIX = 8 /8-bit bytes NAXIS = 2 /2-dimensional binary table NAXIS1 = 28 /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 = 7 /number of fields in each row TTYPE1 = 'N_OBS ' / TFORM1 = 'E ' / TTYPE2 = 'M11 ' / TFORM2 = 'E ' / TUNIT2 = 'counts ' / TTYPE3 = 'M12 ' / TFORM3 = 'E ' / TUNIT3 = 'counts ' / TTYPE4 = 'M13 ' / TFORM4 = 'E ' / TUNIT4 = 'counts ' / TTYPE5 = 'M23 ' / TFORM5 = 'E ' / TUNIT5 = 'counts ' / TTYPE6 = 'M22 ' / TFORM6 = 'E ' / TUNIT6 = 'counts ' / TTYPE7 = 'M33 ' / TFORM7 = 'E ' / TUNIT7 = 'counts ' / EXTNAME = 'Weight Arrays' / DATE = 0 / PIXTYPE = 'HEALPIX ' / ORDERING= 'NESTED ' / NSIDE = 512 / FIRSTPIX= 0 / LASTPIX = 3145727 / COMMENT Weight arrays must be divided by a scaling factor sigma_0^2 COMMENT to provide a weight array in physical units (mK^-2). See WMAP COMMENT Explanatory Supplement. END
