FITS Headers
wmap_temperature_source_mask_r9_7yr_v4.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 = '2009-12-29T19:55:31' /file creation date (YYYY-MM-DDThh:mm:ss UT) OBJECT = 'ALL-SKY ' / Portion of sky given COMMENT This file defines the sky pixels excluded COMMENT by the WMAP intensity source mask for the 7-year data. COMMENT Excluded pixels have the field N_OBS set to 0. COMMENT COMMENT See the WMAP Explanatory Supplement for further details. COMMENT Temperature Point Source Exclusion Mask REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' //lambda. RELEASE = 'DR4 ' /WMAP Release VERSION = 'PASS 4 ' / Internal WMAP Version RESOLUTN= 9 /Resolution Index SKYCOORD= 'Galactic' / Coordinate system 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) TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe 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 = '2009-12-29T00:00:00' /Table creation date PIXTYPE = 'HEALPIX ' /Pixel algorithm ORDERING= 'NESTED ' /Ordering scheme NSIDE = 512 /Resolution parameter FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 3145727 /Last pixel (0 based) COMMENT The TEMPERATURE field is set to 0 for all pixels. COMMENT N_obs is the boolean mask, where 0 means exclude, 1 means include. END
