SIMPLE = T BITPIX = 16 NAXIS = 2 NAXIS1 = 561 NAXIS2 = 561 OBJECT = 'NGC 4501 ' FILTER = 'GC1 (4805/75)'/ 3 inch filter RA = '12:29:28.0' DEC = '+14:41:42.9' AIRMASS = 1.156762E+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 = '-01:44:03.8' / Hour Angle LST = ' 14:15:39.1' / Sidereal Time TIME = '07:12:25.4' FILENUM = 81 DECORDER= F BSCALE = 1.000000E+00 BZERO = 0.000000E+00 CRVAL1 = 1.873667E+02 CRVAL2 = 1.469500E+01 CRPIX1 = 2.820000E+02 CRPIX2 = 2.820000E+02 CDELT1 = -3.305555E-04 CDELT2 = 3.305555E-04 CTYPE1 = 'RA---TAN ' CTYPE2 = 'DEC--TAN ' DATAMAX = 8.905000E+03 DATAMIN = 5.400000E+01 CCDNUM = 1 EXPOSURE= 6.000000E+01 FILENAME= 'n4501_pr.fits' FILTER1 = 'r ' SKY = 5.701921E+02 SKYSIG = 1.697659E+01 XOFFSET = 138 YOFFSET = 141 G_CENT_X= 281 G_CENT_Y= 281 SATURAT = 2 DNAT0_ST= 7.231716E+10 DNAT0_BV= 7.936312E+10 B_RC3 = 1.036000E+01 B-V_RC3 = 7.300000E-01 PSF_FWHM= 2.153244E+00 PA_RC3 = 1.400000E+02 BOA_RC3 = 2.700000E-01 SIZE_RC3= 1.840000E+00 VELO_RC3= 2.278843E+03 TYPE_RC3= '.SAT3.. ' DATE-OBS= '05/05/91 ' END