SIMPLE = T BITPIX = 16 NAXIS = 2 NAXIS1 = 321 NAXIS2 = 321 OBJECT = 'NGC 4498 ' FILTER = 'GC1 (4805/75)'/ 3 inch filter RA = '12:29:07.90' DEC = '+17:07:49.9' AIRMASS = 1.130333E+00 HISTORY 'Flat-fielded, star-subtracted, calibrated, header-corrected ' TELESCOP= 'Palomar 1.5' INSTRUME= 'Wide field' OBSERVER= 'J. E. Gunn' AUTHOR = 'Z. Frei et al. ' REFERENC= 'AJ, 1995, in press ' DATE = '12/07/95 ' EQUINOX = 1.950000E+03 BUNIT = 'COUNTS ' HA = '-01:39:48.5' / Hour Angle LST = ' 14:11:03.3' / Sidereal Time TIME = '07:07:50.5' FILENUM = 79 DECORDER= F BSCALE = 1.000000E+00 BZERO = 0.000000E+00 CRVAL1 = 1.872792E+02 CRVAL2 = 1.713028E+01 CRPIX1 = 1.550000E+02 CRPIX2 = 1.510000E+02 CDELT1 = -3.305555E-04 CDELT2 = 3.305555E-04 CTYPE1 = 'RA---TAN ' CTYPE2 = 'DEC--TAN ' DATAMAX = 5.149000E+03 DATAMIN = 1.972000E+03 CCDNUM = 1 EXPOSURE= 6.000000E+01 FILENAME= 'n4498_pi.fits' FILTER1 = 'i ' SKY = 2.317139E+03 SKYSIG = 4.704920E+01 XOFFSET = 246 YOFFSET = 253 G_CENT_X= 154 G_CENT_Y= 150 SATURAT = 1 DNAT0_ST= 1.028736E+11 DNAT0_BV= 2.074167E+11 B_RC3 = 1.279000E+01 B-V_RC3 = 0.000000E+00 PSF_FWHM= 2.398095E+00 PA_RC3 = 1.330000E+02 BOA_RC3 = 2.700000E-01 SIZE_RC3= 1.470000E+00 VELO_RC3= 1.505058E+03 TYPE_RC3= '.SXS7.. ' DATE-OBS= '05/05/91 ' END