HUBBLE SPACE TELESCOPE
                               DAILY REPORT #843

PERIOD COVERED:  0800 EST
Daily Status Report as of 074/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three Sets of FOS/RD 4698 (FOS Dark Monitoring)

       The Faint Object Spectrograph was used to take a series of three
       internal flat exposures to determine the instruments background. All
       three observations were reported to look as expected. 

   1.2 Completed Two Sets of HSP/POL 3557 (Polarimetric Observations of the 
       Crab Pulsar in the UV)

       The High Speed Photometer was used to make a total of ten
       observations in two separate sets of the Crab Nebula Pulsar.  The
       first three observations were received and displayed. They were
       reported to look okay. The fourth observations was lost because the
       downlink was rejected. The next three observations were received in
       real time and looked okay, however, there was one FGS recentering
       event. In the last three observations, one was reported to be okay,
       one had a FGS recentering event, and the last was lost because the
       downlink was rejected and no data was received. 

   1.3 Completed Two Sets of WFC 1306 (GTO Low Latitude Parallel Program)

       The Wide Field Camera was used to make Three low latitude images
       which were taken in parallel with the prime science observations.
       The first two observations were reported to look good. The third
       observation was reported to have a very bright satellite trail
       crossing the field of view. 

   1.4 Completed PC 4347 (WF/PC Calibration: Flood Retention Test)

       The Planetary Camera was used to take three Earth flat observations
       using filter F439W. The observations occurred during LOS, and still
       remain of the science tape recorder. They will be analyzed later. No
       problems were reported. 

   1.5 Completed WFC/PC 4109 (WF/PC Calibration: Rapid Internal Monitor)

       Both the Planetary Camera and the Wide Field Camera were used to
       make internal flat observations using filter F555W. This was to
       check for new forms of contamination (i.e., measles and daisies),
       and the return of quantum efficiency hysterises. The observation
       were executed as scheduled , and no problems were reported. 

   1.6 Uplinked Updated Ephemeris Tables, Per MOSES 2871

   1.7 Completed FOC 4800 (Stellar Content of Wolf-Rayet Galaxies)

       The Faint object Camera was used to make one ultraviolet observation
       of the Wolf-Rayet galaxy IIZW40. The exposure completed without
       incident under course track using a single guide star. The images
       were reported to show only two point sources. 

   1.8 Completed GHRS/2 2536 (Deuterium in the Local Interstellar Gas)

       The Echelle High Resolution Spectrograph was used to make
       observations of interstellar absorption lines by viewing early type
       B class star HD52089. The baseline guide star acquisition failed.
       The GHRS was idle with the take data flag being down and no image
       was produced. An attitude reference update was uplinked from the
       ground, and the following guide star reacquisition got course track.
       The following observations were reported to show a nice spectrum.
       However, it is not known if the correct target was really centered
       in the aperture. The last two observations did not occur, because
       the previous exposure did not finish in time. 

   1.9 Completed FOC/96 4804 (UV Imaging of Nearby Galaxies with FOC/96) 

       The Faint Object Camera (f/96) was used to make one ten minute
       snapshot using filter F220W. About 60% of the image was received in
       real time before the spacecraft went into LOS. The part of the image
       which was received was reported to look okay. 

   1.10 Completed FOS/RD 2563 (Supernova Intensive Study)

       The Faint Object Spectrograph was used to make spectral observations
       to the supernova in the Large Magellanic Cloud (aka, LMC-SN-1987).
       The guide star acquisition and the subsequent target acquisition
       failed. The following observations did show some weak features. A
       later set of observations were received and displayed. They were
       reported to show nice emission features in spite of the guide star
       acquisition problems. 

   1.11 Initiated FOS/RD 4112 (Evolution of Alpha Lyman and C IV Absorption 
        Systems)

       The Faint Object Spectrograph was used to initiate observations of
       Quasar PG1216+069. The observations are currently under way, and
       will be analyzed later. 

   1.12 Initiated PC 4714 (WF/PC Calibration: PC Internal Delta Flats)

       The Planetary Camera was used to initiate internal flat
       observations which will be used for the restoration of Earth flat
       observations. The observations are currently under way, and will be
       analyzed later. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 8
                                        Successful : 6

                                Acq errors due to large attitude errors.
                               (CT 073/0834Z, and CT at 073/1651Z)

                          Scheduled Reacquisitions : 25
                                        Successful : 25
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 19
                             Successful : 19

   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete FOS/RD 4112 (Evolution of Alpha Lyman and C IV Absorption 
        Systems)

   3.2 Complete PC 4714 (WF/PC Calibration: PC Internal Delta Flats)

   3.3 Complete FOC/96 4804 (UV Imaging of Nearby Galaxies with FOC/96)

   3.4 Complete PC 4714 (WF/PC Calibration: PC Internal Delta Flats)

   3.5 Complete Two Sets of GHRS/2 3496 (Ultraviolet Atlas of Sirius)

   3.6 Complete FOS 4698 (FOS Dark Monitoring)

   3.7 Complete PC 4249 (Black Holes, Stellar Dynamics and Populations)

   3.8 Complete PC 4712 (WF/PC Calibration Measles Monitor)

   3.9 Complete GHRS/2 2537 (Physical Conditions of Interstellar Gas)

   3.10 Initiate FOS/BL 3791 (Quasar Absorption Line Survey)

   3.11 Initiate WFC 4713 (WF/PC Calibration: WFC Internal Delta Flats)

4.0 ANOMALY STATUS:
	
   4.1 Significant New Anomalies: None

   4.2 Significant Unresolved Anomalies: None
 
5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time.

                                -END-