FITS Headers

act_dr6.02_null-el1_AA_night_pa4_f150_4way_set1_map.fits

Primary Header

SIMPLE  =                    T / conforms to FITS standard                      
BITPIX  =                  -32 / array data type                                
NAXIS   =                    3 / number of array dimensions                     
NAXIS1  =                43200                                                  
NAXIS2  =                10320                                                  
NAXIS3  =                    3                                                  
WCSAXES =                    2 / Number of coordinate axes                      
CRPIX1  =              21601.0 / Pixel coordinate of reference point            
CRPIX2  =               7560.5 / Pixel coordinate of reference point            
CDELT1  =  -0.0083333333333333 / [deg] Coordinate increment at reference point  
CDELT2  =   0.0083333333333333 / [deg] Coordinate increment at reference point  
CUNIT1  = 'deg'                / Units of coordinate increment and value        
CUNIT2  = 'deg'                / Units of coordinate increment and value        
CTYPE1  = 'RA---CAR'           / Right ascension, plate caree projection        
CTYPE2  = 'DEC--CAR'           / Declination, plate caree projection            
CRVAL1  =                  0.0 / [deg] Coordinate value at reference point      
CRVAL2  =                  0.0 / [deg] Coordinate value at reference point      
LONPOLE =                  0.0 / [deg] Native longitude of celestial pole       
LATPOLE =                 90.0 / [deg] Native latitude of celestial pole        
MJDREF  =                  0.0 / [d] MJD of fiducial time                       
RADESYS = 'ICRS'               / Equatorial coordinate system                   
TELESCOP= 'act     '                                                            
INSTRUME= 'advact  '                                                            
RELEASE = 'dr6.02  '           / Data release tag                               
SEASON  = 's17s22  '           / Observation seasons                            
PATCH   = 'AA      '           / Survey patch                                   
ARRAY   = 'pa4     '           / Telescope array                                
FREQ    = 'f150    '           / Frequency tag                                  
ACTTAGS = 'null-el1,night'                                                      
BUNIT   = 'uK      '           / Physical (pixel) units                         
EXTNAME = 'FREQ-MAP'           / Extension name                                 
POLCCONV= 'IAU     '           / Polarization convention                        
CTYPE3  = 'STOKES  '                                                            
END