SIMPLE  =                    T / Standard FITS format (rev Dec 79)              BITPIX  =                    8 / Character Information                          NAXIS   =                    0 / No image data array present                    BLOCKED =                    T / Records may be blocked...                      EXTEND  =                    T / There may be standard extension                ORIGIN  = 'ESO-MIDAS'          / E S O  MIDAS System (on VAX/VMS)               FILENAME= 'OPE3.TBL    '       / Name of the file                               DATE    = '17/02/89'           / Date tape was written                          END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             XTENSION= 'TABLE   '           / TABLE EXTENSION (REV.1986)                     BITPIX  =                    8 / 8-bits per "pixel"                             NAXIS   =                    2 / Simple 2-D matrix                              NAXIS1  =                   59 / No. of characters per row                      NAXIS2  =                  700 / The number of rows                             PCOUNT  =                    0 / No "random" parameters                         GCOUNT  =                    1 / Only one group                                 TFIELDS =                    5 / Number of columns                              EXTNAME = 'OPE3.TBL    '       / Name of the table                                                                                                              TTYPE1  = '0.441 CONTINUUM '   / Type of the field (column label)               TBCOL1  =                    1 / Starting character position                    TFORM1  = 'G12.4   '           / Fortran format                                 TUNIT1  = 'WATT/CM2/STR/ANG'   / Physical units of the field                                                                                                    TTYPE2  = '0.576 CONTINUUM '   / Type of the field (column label)               TBCOL2  =                   14 / Starting character position                    TFORM2  = 'G12.4   '           / Fortran format                                 TUNIT2  = 'WATT/CM2/STR/ANG'   / Physical units of the field                                                                                                    TTYPE3  = '0.718 CONTINUUM '   / Type of the field (column label)               TBCOL3  =                   27 / Starting character position                    TFORM3  = 'G12.4   '           / Fortran format                                 TUNIT3  = 'WATT/CM2/STR/ANG'   / Physical units of the field                                                                                                    TTYPE4  = 'CO+             '   / Type of the field (column label)               TBCOL4  =                   40 / Starting character position                    TFORM4  = 'G12.4   '           / Fortran format                                 TUNIT4  = 'WATT/CM2/STR/ANG'   / Physical units of the field                                                                                                    TTYPE5  = 'COMETOCENTRIC DISTANCE'                                              TBCOL5  =                   53 / Starting character position                    TFORM5  = 'I6      '           / Fortran format                                 TUNIT5  = 'KILOMETERS      '   / Physical units of the field                                                                                                    HISTORY GIOTTO - HOPE OPTICAL PROBE EXPERIMENT                                  HISTORY PHASE 1                                                                 HISTORY OBSEVATIONS 13-14 MARCH 1986                                            HISTORY DATA PREPARED 17 FEB 1989 BY:                                           HISTORY LAB. D'ASTRONOMIE SPATIALE                                              HISTORY (MARSEILLE-FRANCE)  AND                                                 HISTORY SPACE LABORATORY                                                        HISTORY ASTRONOMY DEPARTMENT                                                    HISTORY UNIVERSITY OF FLORIDA                                                   HISTORY CONTACT:                                                                HISTORY A.LLEBARIA, P.LAMY AT L.A.S.                                            HISTORY FRANK GIOVANNE AT ASTRONOMY DEPT.                                       HISTORY UNIVERSITY OF FLORIDA                                                   HISTORY                                                                         COMMENT -----ADDED BY A.C.LEVASSEUR-REGOURD AT CNRS----------                   COMMENT Absolute Calibration                                                    COMMENT Due to the reduced amount of time available for calibrations after      COMMENT the flight detector was available, the absolute-radiance sensitivity    COMMENT of the instrument had been inferred by considering the individual       COMMENT spectral transmissions of each optical component, the field of view     COMMENT of the instrument, the photocathode spectral sensitivity and the total  COMMENT responsivity of the microchannel plate photomultiplier (Giovane, F.,    COMMENT et al. 1991).   The results were the following:                         COMMENT                                                                         COMMENT Channel Wavelength   Bandpass                  Responsivity             COMMENT        nm         50% peak, nm    10**-7 Wm**-2sr**-1microm**-1ct**-1   COMMENT Blue  442              5                         2.09                   COMMENT Green 576             10                         0.88                   COMMENT Red   718              4                         4.40                   COMMENT OH    310              6                        16.81                   COMMENT CN    387              4                         8.20                   COMMENT CO+   424              4                         1.34                   COMMENT C2    514              4                         3.75                   COMMENT                                                                         COMMENT The on-board calibration tritium-phosphor source (mounted on the        COMMENT back of the baffle cover), which allowed the instrument to be           COMMENT tested during the pre-Halley-encounter cruise, was released with        COMMENT the baffle cover prior to Halley encounter. "                           COMMENT                                                                         END