FITS Headers
wmap_smth_imap_r9_9yr_W3_v5.fits
Primary Header
SIMPLE = T / file does conform to FITS standard BITPIX = 32 / 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 = '2012-07-09T16:00:12' /file creation date (YYYY-MM-DDThh:mm:ss UT) TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' / OBJECT = 'ALL-SKY ' / Portion of sky given EQUINOX = 2000.0 / Equinox of coordinates COMMENT This file contains WMAP nine-year coadded 1 deg. smoothed Intensity (I) COMMENT Res 9 skymap for the differencing assembly indicated by the COMMENT DA keyword. PIXTYPE = 'HEALPIX ' / Pixel algorithm ORDERING= 'NESTED ' / Ordering scheme NSIDE = 512 /Resolution Parameter NPIX = 3145728 / # of pixels FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 3145727 /Last pixel (0 based) STOKES = 'I ' / DA = 'W3 ' /WMAP Differencing Assembly FREQ = 'W band ' /Frequency band RELEASE = 'DR5 ' /WMAP Release RESOLUTN= 9 /Resolution Index SIGMA0_I= 6.94058000000 / COMMENT Pixel noise in mK may be evaluated from the Nobs field using COMMENT the expression: COMMENT sigma = sigma0/sqrt(Nobs) COMMENT sigma0 applies to the entire map and is a scalar value listed COMMENT in the header. END
Archive Map Table
XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 8 / 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 = 2 / number of fields in each row TTYPE1 = 'TEMPERATURE' / label for field 1 TFORM1 = 'E ' / data format of field: 4-byte REAL TUNIT1 = 'mK,thermodynamic' / physical unit of field TTYPE2 = 'N_OBS ' / label for field 2 TFORM2 = 'E ' / data format of field: 4-byte REAL TUNIT2 = 'counts ' / physical unit of field EXTNAME = 'Archive Map Table' / name of this binary table extension DATE = '2012-07-09T16:00:12' /file creation date (YYYY-MM-DDThh:mm:ss UT) PIXTYPE = 'HEALPIX ' / Pixel algorithm ORDERING= 'NESTED ' / Ordering scheme NSIDE = 512 / Resolution parameter FIRSTPIX= 0 / First pixel (0 based) LASTPIX = 3145727 / Last pixel (0 based) END
