FITS Headers


Primary Header

SIMPLE  =                    T /FITS format                                     
BITPIX  =                   32 /Dummy primary header                            
NAXIS   =                    0 /No data is associated with this header          
EXTEND  =                    T /Extensions may (will!) be present               
RESOLUTN=                    9 /Resolution Index                                
PIXTYPE = 'HEALPIX '           /Pixel algorigthm                                
ORDERING= 'NESTED  '           /Ordering scheme                                 
NSIDE   =                  512 /Resolution Parameter                            
FIRSTPIX=                    0 /First pixel (0 based)                           
LASTPIX =              3145727 /Last pixel (0 based)                            
COMMENT This file contains a foreground cleaned WMAP Intensity (I) Res 9 skymap 
COMMENT for the differencing assembly indicated by the DA keyword.              
COMMENT The seventh year of data went into the map.                             
DATE    = '2012-07-05T20:26:22' /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  = 'I       '           /                                                
DA      = 'W4      '           /WMAP Differencing Assembly                      
FREQ    = 'W band  '           /Frequency band                                  
RELEASE = 'DR5     '           /WMAP Release                                    
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.                                                          

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      '           /physical unit of field 1                        
TTYPE2  = 'N_OBS   '           /label for field 2                               
TFORM2  = 'E       '           /data format of field: 4-byte REAL               
TUNIT2  = 'counts  '           /physical unit of field 2                        
EXTNAME = 'Archive Map Table'  /name of this binary table extension             
PIXTYPE = 'HEALPIX '           /Pixel algorigthm                                
ORDERING= 'NESTED  '           /Ordering scheme                                 
NSIDE   =                  512 /Resolution parameter                            
FIRSTPIX=                    0 /First pixel (0 based)                           
LASTPIX =              3145727 /Last pixel (0 based)                            
DATE    = '2012-07-05T20:26:22' /file creation date (YYYY-MM-DDThh:mm:ss UT)    

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HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
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