SIMPLE  =                    T /                                                
BITPIX  =                   16 /                                                
NAXIS   =                    4 /                                                
NAXIS1  =                  425 /                                                
NAXIS2  =                  489 /                                                
NAXIS3  =                    1 /                                                
NAXIS4  =                    1 /                                                
EXTEND  =                    T /Tables following main image                     
BLOCKED =                    T /Tape may be blocked                             
OBJECT  = 'GC20BC  '                                                            
TELESCOP= 'VLA     '                                                            
INSTRUME= '        '                                                            
OBSERVER= 'ZADE    '                                                            
DATE-OBS= '31/03/84'                                                            
DATE-MAP= '09/04/92'                                                            
BSCALE  =    2.20623517793E-05 /REAL = TAPE * BSCALE + BZERO                    
BZERO   =    6.96267664433E-01 /                                                
BUNIT   = 'JY/BEAM '                                                            
EPOCH   =      1.950000000E+03 /EPOCH OF RA DEC                                 
OBSRA   =    2.65812497735E+02 /ANTENNA POINTING RA                             
OBSDEC  =   -2.88666666672E+01 /ANTENNA POINTING DEC                            
XSHIFT  =     -9.515702724E-02 /NET SHIFT OF PHASE CENTER INX                   
YSHIFT  =      3.340796684E-05 /NET SHIFT OF PHASE CENTER INY                   
DATAMAX =      1.419030309E+00 /MAX PIXEL VALUE                                 
DATAMIN =     -2.649497986E-02 /MIN PIXEL VALUE                                 
CTYPE1  = 'RA---SIN'                                                            
CRVAL1  =    2.65812497735E+02 /                                                
CDELT1  =     -1.111111138E-03 /                                                
CRPIX1  =      1.650000000E+02 /                                                
CROTA1  =      0.000000000E+00 /                                                
CTYPE2  = 'DEC--SIN'                                                            
CRVAL2  =   -2.88666666672E+01 /                                                
CDELT2  =      1.111111138E-03 /                                                
CRPIX2  =      2.170000000E+02 /                                                
CROTA2  =      0.000000000E+00 /                                                
CTYPE3  = 'FREQ    '                                                            
CRVAL3  =    1.44615000000E+09 /                                                
CDELT3  =      1.250000000E+07 /                                                
CRPIX3  =      1.000000000E+00 /                                                
CROTA3  =      0.000000000E+00 /                                                
CTYPE4  = 'STOKES  '                                                            
CRVAL4  =    1.00000000000E+00 /                                                
CDELT4  =      1.000000000E+00 /                                                
CRPIX4  =      1.000000000E+00 /                                                
CROTA4  =      0.000000000E+00 /                                                
ORIGIN  = 'AIPSnrao1 cv convex c-1  15APR92'    /                               
DATE    = '11/04/92'                    / File written on dd/mm/yy              
AUTHOR  = 'Farhad Yusef-Zadeh and Mark Morris'                                  
REFERENC= '1989.IAUSYMP.136.243'                                                
ADILCODE= '95.FY.01.02'                                                         
END