FITS Headers
wmap_K_mem_freefree_7yr_v4.fits
Primary Header
SIMPLE = T / file does conform to FITS standard BITPIX = 8 / 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 = '2009-09-24T00:00:00' /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 the WMAP MEM derived K band free-free COMMENT foreground based on the 7-year observations. REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/ RELEASE = 'DR4 ' / WMAP Release VERSION = 'PASS 4 ' / Internal WMAP Version STARTGMT= '20012220000000000000' / Start time of TOD used ENDGMT = '20082212359000000000' / End time of TOD used FREQ = 'K band ' / Frequency band STOKES = 'Intensity' / i, q, or u RESOLUTN= 7 / Resolution index SKYCOORD= 'Galactic' / Coordinate system PIXTYPE = 'HEALPIX ' / Pixel algorithm ORDERING= 'NESTED ' / Ordering scheme NSIDE = 128 / Resolution parameter NPIX = 196608 / # of pixels FIRSTPIX= 0 / First pixel (0 based) LASTPIX = 196607 / Last pixel (0 based) 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 = 196608 /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 = '1E ' /data format of field: 4-byte REAL TUNIT1 = 'mK, antenna' /physical unit of field TTYPE2 = 'N_OBS ' /label for field 2 TFORM2 = '1E ' /data format of field: 4-byte REAL TUNIT2 = 'counts ' /physical unit of field EXTNAME = 'Archive Map Table' /name of this binary table extension DATE = '2009-09-24T00:00:00' /Table/WMAP creation date PIXTYPE = 'HEALPIX ' /Pixel algorithm ORDERING= 'NESTED ' /Ordering scheme NSIDE = 128 /Resolution parameter NPIX = 196608 /# of pixels FIRSTPIX= 0 /First pixel (0 based) LASTPIX = 196607 /Last pixel (0 based) COMMENT Temperature is antenna temperature. COMMENT N_obs is set to 1 for all pixels. The N_obs field COMMENT is filled only to provide consistent map format. END
