FITS Headers

wmap_band_qumap_r4_9yr_W_v5.fits

Primary Header

SIMPLE  =                    T /FITS format                                     
BITPIX  =                    8 /Dummy primary header                            
NAXIS   =                    0 /No data is associated with this header          
EXTEND  =                    T /Extensions may (will!) be present               
RESOLUTN=                    4 /Resolution Index                                
PIXTYPE = 'HEALPIX '           /Pixel algorigthm                                
ORDERING= 'NESTED  '           /Ordering scheme                                 
NSIDE   =                   16 /Resolution Parameter                            
NPIX    =                 3072 /Number of pixels                                
FIRSTPIX=                    0 /First pixel (0 based)                           
LASTPIX =                 3071 /Last pixel (0 based)                            
TELESCOP= 'WMAP    '           /Wilkinson Microwave Anisotropy Probe            
COMMENT This file contains WMAP nine-year coadded Polarization                  
COMMENT (Q and U) Res 4 skymaps for the frequency band indicated                
COMMENT by the FREQ keyword.                                                    
REFERENC= 'WMAP Explanatory Supplement:  http://lambda.gsfc.nasa.gov/' /        
STOKES  = 'QU      '           /                                                
RELEASE = 'DR5     '           /WMAP Release                                    
DATE    = '1970-01-01T00:00:00' /file creation date (YYYY-MM-DDThh:mm:ss UT)    
FREQ    = 'W band  '           /Frequency band                                  
END                                                                             

Stokes Maps

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                    
TTYPE1  = 'Q_POLARISATION'     /                                                
TFORM1  = 'E       '           /                                                
TUNIT1  = 'mK,thermodynamic'   /                                                
TTYPE2  = 'U_POLARISATION'     /                                                
TFORM2  = 'E       '           /                                                
TUNIT2  = 'mK,thermodynamic'   /                                                
EXTNAME = 'Stokes Maps'        /                                                
DATE    =                    0 /                                                
PIXTYPE = 'HEALPIX '           /                                                
ORDERING= 'NESTED  '           /                                                
NSIDE   =                   16 /                                                
FIRSTPIX=                    0 /                                                
LASTPIX =                 3071 /                                                
END