SIMPLE  =                    T /T conforms to standard FITS format              BITPIX  =                   16 /16-bit integer data                             NAXIS   =                    2 /number of axes in array                         NAXIS1  =                  192 /number of pixels in X axis (samples)            NAXIS2  =                  256 /number of pixels in Y axis (rows)               OBJECT  = 'P/GIACOBINI-ZINNER' /object name                                     FILE-NUM=               498318 /disc file name code                             DATE-OBS= '03/11/85'           /Mid-UT date of observation                      TIME-OBS=              0.43274 /decimal part of day (mid-UT)                    DATE-REL= '01/05/88'           /date released to archive                        DISCIPLN= 'NEAR NUCLEUS'       /IHW net                                         LONG-OBS= '255/58/42'          /observatory east longitude                      LAT--OBS= '+30/40/17'          /observatory latitude                            SYSTEM  = '47110405'           /observing system code                           OBSERVER= 'GREEN,J/BARKER,E  ' /observer's name                                 SUBMITTR= 'BARKER,E          ' /submitter's name                                SPEC-EVT=                    F /special event in image if T                     DAT-FORM= 'STANDARD          ' /type of data                                    OBSVTORY= 'MCDONALD          ' /observatory name                                ELEV-OBS=                 2073 /elevation of observatory in meters              TELESCOP= '0.91M             ' /telescope used                                  APERTURE=                 0.91 /telescope aperture in meters                    TELEFL  =               12.373 /effective focal length in meters                PLTSCALE=                16.67 /platescale in arcsec per mm                     CROTA1  =                267.0 /position angle of sample axis, N->E             SENSE   =                    F /PA counterclockwise (T)                         DETECTOR= 'RCA CCD  (R2)     ' /detector used                                   DIGITIZE= '                  ' /type of digitizer used if not detector          APSIZE  =                0.060 /size of pixels in mm                            FILTER  = '485MC             ' /filter used                                     EXPOSURE=                600.0 /exposure duration in seconds                    AIRM-MID=                1.172 /calculated air mass at mid-exposure             QUALITY = 'POOR     '          /general quality of image                        DATE-WRT= '20/10/88'           /date this file was written                      ORIGIN  = 'UNIV. TEXAS       ' /tape writing institution                        BUNIT   = 'REL. INT.         ' /units of the intensity values                   COMETMAX=                 1157 /maximum tape value in comet image               SKYMIN  =                  300 /approximate minimum background level            COMMENT PHOTOMETRIC; FLUX AND MEAN EXTINCTION CALIBRATION AVAILABLE             COMMENT NOT ENOUGH EAST TRACK (ABOUT 4ARCSEC)                                   HISTORY DATA WAS BINNED (2X2) ON-CHIP TO PRODUCE 60 MICRON PIXELS               HISTORY REPLACES 490NNN WHERE NNN= LAST THREE DIGITS OF FILENUM                 END