SIMPLE  =                    T /T conforms to standard FITS format              BITPIX  =                   16 /16-bit integer data                             NAXIS   =                    2 /number of axes in array                         NAXIS1  =                  320 /number of pixels in X axis (samples)            NAXIS2  =                  512 /number of pixels in Y axis (rows)               OBJECT  = 'P/GIACOBINI-ZINNER' /object name                                     FILE-NUM=               498003 /disc file name code                             DATE-OBS= '17/08/85'           /mid-UT date of observation                      TIME-OBS=              0.48559 /decimal part of day (mid-UT)                    DATE-REL= '01/05/88'           /date released to archive                        DISCIPLN= 'NEAR NUCLEUS'       /IHW net                                         LONG-OBS= '249/16/05'          /observatory east longitude                      LAT--OBS= '+32/25/01'          /observatory latitude                            SYSTEM  = '46930108'           /observing system code                           OBSERVER= 'LARSON,S/HOBAN,S  ' /observer's name                                 SUBMITTR= 'LEVY,D            ' /submitter's name                                SPEC-EVT=                    F /special event in image if T                     DAT-FORM= 'STANDARD          ' /type of data                                    OBSVTORY= 'CATALINA          ' /observatory name                                ELEV-OBS=                 2510 /elevation of observatory in meters              TELESCOP= '1.5M REFL         ' /telescope used                                  APERTURE=                 1.54 /telescope aperture in meters                    TELEFL  =               21.511 /effective focal length in meters                PLTSCALE=                 9.59 /platescale in arcsec per mm                     CROTA1  =                180.0 /position angle of sample axis, N->E             SENSE   =                    T /PA counterclockwise (T)                         DETECTOR= 'RCA CCD           ' /detector used                                   DIGITIZE= '                  ' /type of digitizer used if not detector          APSIZE  =                0.030 /size of pixels in mm                            FILTER  = '684RC             ' /filter used                                     EXPOSURE=                100.0 /exposure duration in seconds                    AIRM-MID=                1.122 /calculated air mass at mid-exposure             QUALITY = 'FAIR     '          /general quality of image                        DATE-WRT= '20/10/88'           /date this file was written                      ORIGIN  = 'UNIV. ARIZONA     ' /tape writing institution                        BUNIT   = 'REL. INT.         ' /units of the intensity values                   COMETMAX=                   44 /maximum tape value in comet image               SKYMIN  =                    0 /approximate minimum background level            HISTORY REPLACES 490NNN WHERE NNN= LAST THREE DIGITS OF FILENUM                 END