WMAP FITS Header

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 = 'DR3     '           /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 five 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