FITS Headers
wmap_polarization_analysis_mask_r4_7yr_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 DATE = '2008-01-18T11:05:00' /file creation date (YYYY-MM-DDThh:mm:ss UT) TELESCOP= 'WMAP' / Wilkinson Microwave Anisotropy Probe RELEASE = 'DR4 ' /WMAP release identifier OBJECT = 'ALL-SKY ' / Portion of sky given SKYCOORD= 'Galactic' / Coordinate system REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/ PIXTYPE = 'HEALPIX ' / Pixel algorigthm ORDERING= 'NESTED ' / Ordering scheme RESOLUTN= 4 /Resolution index NSIDE = 16 /Resolution parameter NPIX = 3072 /# of pixels FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 3071 /Last pixel (0 based) COMMENT This file contains the polarization source mask in map form COMMENT used in processing seven years of observations. COMMENT TEMPERATURE is set to 0 for all pixels. This field COMMENT is filled only to provide a consistent map format. COMMENT N_obs is the boolean mask, where 0=exclude and 1=include. 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 = 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 *** End of mandatory fields *** COMMENT COMMENT COMMENT *** End of mandatory fields *** COMMENT COMMENT COMMENT *** Column names *** COMMENT COMMENT COMMENT *** Column names *** COMMENT COMMENT COMMENT *** Column names *** COMMENT TTYPE1 = 'TEMPERATURE ' /label for field 1 COMMENT COMMENT *** Column formats *** COMMENT COMMENT COMMENT *** Column formats *** COMMENT COMMENT COMMENT *** Column formats *** COMMENT 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 = '2008-01-18T11:05:00' /Table/MAP creation date PIXTYPE = 'HEALPIX ' /Pixel algorithm ORDERING= 'NESTED ' /Ordering scheme NSIDE = 16 /Resolution parameter FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 3071 /Last pixel (0 based) COMMENT Temperature is set to zero for all pixels. This field is filled COMMENT only to provide a consistent format. COMMENT N_obs is the boolean mask, where 0=exclude and 1=include END
