FITS Headers

wmap_forered_qumap_r4_yr3_Q1_v4.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)                            
COMMENT This file contains WMAP Polarization (Q and U) Res 4)                   
COMMENT Foreground Reduced skymaps for the differencing assembly                
COMMENT indicated by the DA keyword.                                            
COMMENT The third year of data went into the map.                               
DATE    = '2009-12-28T23:19:55' /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  = 'QU      '           /                                                
DA      = 'Q1      '           /WMAP Differencing Assembly                      
FREQ    = 'Q band  '           /Frequency band                                  
RELEASE = 'DR4     '           /WMAP Release                                    
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