FITS Headers
wmap_imap_r9_yr4_Q2_v3.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
FIRSTPIX= 0 /First pixel (0 based)
LASTPIX = 3145727 /Last pixel (0 based)
COMMENT This file contains a WMAP Intensity (I) Res 9 skymap for the
COMMENT differencing assembly indicated by the DA keyword.
COMMENT The fourth year of data went into the map.
DATE = '2007-10-31T15:07:31' /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 = 'I ' /
DA = 'Q2 ' /WMAP Differencing Assembly
FREQ = 'Q band ' /Frequency band
RELEASE = 'DR3 ' /WMAP Release
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 ' /physical unit of field 1
TTYPE2 = 'N_OBS ' /label for field 2
TFORM2 = 'E ' /data format of field: 4-byte REAL
TUNIT2 = 'counts ' /physical unit of field 2
EXTNAME = 'Archive Map Table' /name of this binary table extension
PIXTYPE = 'HEALPIX ' /Pixel algorigthm
ORDERING= 'NESTED ' /Ordering scheme
NSIDE = 512 /Resolution parameter
FIRSTPIX= 0 /First pixel (0 based)
LASTPIX = 3145727 /Last pixel (0 based)
END