SIMPLE = T BITPIX = 16 NAXIS = 2 NAXIS1 = 313 NAXIS2 = 313 OBJECT = 'NGC 3556 ' BSCALE = 1.000000E+00 BZERO = 0.000000E+00 EXPOSURE= 6.000000E+02 RA = '11:10:50.3' DEC = '+55:43:55 ' TIME = '04:51:31 ' AIRMASS = 1.090000E+00 HISTORY 'Flat-fielded, star-subtracted, calibrated, header-corrected ' TELESCOP= 'Lowell 1.1' INSTRUME= 'RCA CCD 320' OBSERVER= 'J. A. Tyson' AUTHOR = 'Z. Frei et al. ' REFERENC= 'AJ, 1995, in press ' DATE = '12/07/95 ' EQUINOX = 1.950000E+03 BUNIT = 'COUNTS ' FILTER1 = 'R ' FILENAME= 'n3556_lR.fits' OBSTAPE = 'Tape_3 ' SKY = 6.493026E+02 SKYSIG = 1.270629E+01 IMAGE = 'n3556r.01 ' DISKDIR = 'Tape_3/30mar' DECORDER= F CRVAL1 = 1.677083E+02 CRVAL2 = 5.573195E+01 CRPIX1 = 2.220000E+02 CRPIX2 = 1.570000E+02 CDELT1 = -3.750000E-04 CDELT2 = 3.750000E-04 CTYPE1 = 'RA---TAN ' CTYPE2 = 'DEC--TAN ' DATAMAX = 5.700000E+03 DATAMIN = 5.700000E+01 CCDNUM = 1 XOFFSET = 22 YOFFSET = 147 G_CENT_X= 221 G_CENT_Y= 156 SATURAT = 1 DNAT0_ST= 0.000000E+00 DNAT0_BV= 6.516329E+10 B_RC3 = 1.069000E+01 B-V_RC3 = 6.600000E-01 PSF_FWHM= 3.252761E+00 PA_RC3 = 8.000000E+01 SIZE_RC3= 1.940000E+00 BOA_RC3 = 5.900000E-01 VELO_RC3= 6.934269E+02 TYPE_RC3= '.SBS6./ ' DATE-OBS= '31/03/89 ' END