FITS Headers

wmap_iqusninv_r4_yr4_W1_v4.fits

Primary Header

SIMPLE  =                    T /FITS format                                     
BITPIX  =                  -32 /                                                
NAXIS   =                    2 /Number of dimensions                            
NAXIS1  =                12288 /                                                
NAXIS2  =                12288 /                                                
EXTEND  =                    T /Extensions may be present                       
PIXTYPE = 'HEALPIX '           /Pixel algorigthm                                
ORDERING= 'NESTED  '           /Ordering scheme                                 
RESOLUTN=                    4 /Resolution Index                                
NSIDE   =                   16 /Resolution Parameter                            
NPIX    =                 3072 /# pixels in associated maps                     
FREQ    = 'W band  '           /Frequency band                                  
DA      = 'W1      '           /Differencing Assembly                           
RELEASE = 'DR4     '           /WMAP Release                                    
TELESCOP= 'WMAP    '           /Wilkinson Microwave Anisotropy Probe            
COMMENT This file contains the WMAP Polarization (Q and U) Res 4                
COMMENT N-Inverse file for the differencing assembly indicated                  
COMMENT by the DA keyword.                                                      
COMMENT This is a 4Nx4N matrix, ordered (I,Q,U,S)                               
COMMENT The fourth year of data went into the map.                              
REFERENC= 'WMAP Explanatory Supplement:  http://lambda.gsfc.nasa.gov/' //lambda.
DATE    = '2009-12-31T16:39:48' /file creation date (YYYY-MM-DDThh:mm:ss UT)    
STOKES  = 'IQUS    '           /                                                
END