FITS Headers
wmap_smth_deconv_imap_r9_9yr_W4_v5.fits
Primary Header
SIMPLE = T / file does conform to FITS standard
BITPIX = 32 / 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 = '2012-09-14T12:18:39' /file creation date (YYYY-MM-DDThh:mm:ss UT)
TELESCOP= 'WMAP ' /Wilkinson Microwave Anisotropy Probe
REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/' /
OBJECT = 'ALL-SKY ' / Portion of sky given
EQUINOX = 2000.0 / Equinox of coordinates
COMMENT This file contains WMAP nine-year coadded deconvolved 1 deg. smoothed In
COMMENT Res 9 skymap for the differencing assembly indicated by the
COMMENT DA keyword.
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)
STOKES = 'I ' /
DA = 'W4 ' /WMAP Differencing Assembly
FREQ = 'W band ' /Frequency band
RELEASE = 'DR5 ' /WMAP Release
RESOLUTN= 9 /Resolution Index
SIGMA0_I= 6.77344000000 /
COMMENT Pixel noise in mK may be evaluated from the Nobs field using
COMMENT the expression:
COMMENT sigma = sigma0/sqrt(Nobs)
COMMENT sigma0 applies to the entire map and is a scalar value listed
COMMENT in the header.
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 = '2012-09-14T12:18:39' /file creation date (YYYY-MM-DDThh:mm:ss UT)
PIXTYPE = 'HEALPIX ' / Pixel algorithm
ORDERING= 'NESTED ' / Ordering scheme
NSIDE = 512 / Resolution parameter
FIRSTPIX= 0 / First pixel (0 based)
LASTPIX = 3145727 / Last pixel (0 based)
END