FITS Headers

DRAO_10MHz_hpx_r7.fits

Primary Header

SIMPLE  =                    T /FITS format                                     
BITPIX  =                   16 /Number of bits per data pixel                   
NAXIS   =                    0 /No data is associated with this header          
EXTEND  =                    T /Extensions may (will!) be present               
DATE    = '2020-06-01T00:00:00' /file creation date (YYYY-MM-DDThh:mm:ss UT)    
COMMENT  FITS (Flexible Image Transport System) format is defined in Astronomy  
COMMENT  and Astrophysics, volume 376, page 359; bibcode: 2001A&A...376..359H   
COMMENT   This file contains data from the DRAO 10 MHz northern sky map.        
COMMENT   The data in celestial coordinates were obtained from the              
COMMENT   Max Planck Institute for Radio Astronomy Survey Sampler website       
COMMENT   and interpolated to a Galactic coordinate HEALPix projection.         
COMMENT   This file is distributed and maintained by LAMBDA.                    
COMMENT  "A Map of the Northern Sky at 10 MHz", Caswell 1976, MNRAS, 177, 601   
COMMENT  MPIfR page: http://www3.mpifr-bonn.mpg.de/survey.html                  
COMMENT  HEALPix Home Page: https://healpix.jpl.nasa.gov/                       
FREQ    = '10.03 MHz'          /Center Frequency                                
BMAJ    =              2.60000 /[deg] Beam major axis FWHM                      
BMIN    =              1.90000 /[deg] Beam minor axis FWHM                      
END                                                                             

Extension Header 2

XTENSION= 'BINTABLE'           /Written by IDL:  Mon Jun  1 10:54:20 2020       
BITPIX  =                    8 /                                                
NAXIS   =                    2 /Binary table                                    
NAXIS1  =                 4096 /Number of bytes per row                         
NAXIS2  =                  192 /Number of rows                                  
PCOUNT  =                    0 /Random parameter count                          
GCOUNT  =                    1 /Group count                                     
TFIELDS =                    1 /Number of columns                               
TTYPE1  = 'TEMPERATURE'        / Brightness temperature                         
TFORM1  = '1024E   '           /Real*4 (floating point)                         
TUNIT1  = 'K       '           / map unit                                       
PIXTYPE = 'HEALPIX '           / HEALPIX pixelisation                           
ORDERING= 'NESTED  '           / Pixel ordering scheme, either RING or NESTED   
NSIDE   =                  128 / Healpix resolution parameter                   
NPIX    =               196608 / Total number of pixels                         
OBJECT  = 'FULLSKY '           / Sky coverage, either FULLSKY or PARTIAL        
FIRSTPIX=                    0 / First pixel # (0 based)                        
LASTPIX =               196607 / Last pixel # (zero based)                      
INDXSCHM= 'IMPLICIT'           / indexing : IMPLICIT or EXPLICIT                
GRAIN   =                    0 / GRAIN = 0: No index,                           
COMMENT         GRAIN =1: 1 pixel index for each pixel,                         
COMMENT         GRAIN >1: 1 pixel index for Grain consecutive pixels            
COORDSYS= 'G       '           / Pixelization coordinate system                 
COMMENT         G = Galactic, E = ecliptic, C = celestial = equatorial          
BAD_DATA=         -1.63750E+30 / Sentinel value given to bad pixels             
END