HUBBLE SPACE TELESCOPE
                               DAILY REPORT #844

PERIOD COVERED:  0800 EST
Daily Status Report as of 075/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/RD 4112 (Evolution of Alpha Lyman and C IV Absorption 
        Systems)

       The Faint Object Spectrograph was used to make observations of Lyman
       Alpha and Carbon IV emissions in quasar PG1216+069. The observations
       were executed as scheduled, and no problems were reported. 

   1.2 Completed PC 4714 (WF/PC Calibration: PC Internal Delta Flats)

       The Planetary Camera was used to make six internal flat observations
       which will be used for the restoration of Earth flats, which were
       altered due to changes in quantum efficiency which occurred after
       WFPC decontamination operations. All six observations were reported
       to look normal. 

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

       The Faint Object Camera (f/96) was used to to take ultraviolet
       snapshots of nearby galaxy UGC-77212. Three observations were
       monitored. On one of the observations there was data receipt
       problems. Too much of the data was missing to evaluate this
       observation. It was received okay by the Data Capture Facility
       (DCF). 

   1.4 Completed GHRS/2 3496 (Ultraviolet Atlas of Sirius)

       The High Resolution Spectrograph was used to attempt an ultraviolet
       spectral observation of the star Sirius (aka, HD48915). The baseline
       guide star acquisition for this series failed. The science
       observations were not executed. 

   1.5 Completed FOS 4698 (FOS Dark Monitoring)

       The Faint Object Spectrograph was used to make a series of dark
       calibration images on both the red and blue side to determine the
       instruments background. The dark exposures were monitored by the
       OSS, and no problems were seen. One observations showed a little
       bump in the middle of the data. The SHP (Standard Header Packet) and
       UDL (Unique Data Log) files for one observations were lost due to a
       science tape recorder track change. 

   1.6 Completed PC 4249 (Black Holes, Stellar Dynamics and Populations)

       The Planetary Camera was used to obtain four images of the nuclei of
       the large elliptical galaxy NGC-4623 which is located in the Virgo
       Cluster. All four observations were monitored and displayed in the
       OSS. Three of the observations showed some recentering during their
       execution. 

   1.7 Completed PC 4712 (WF/PC Calibration Measles Monitor)

       The Planetary Camera was used to make three Earth flat calibration
       observations using filter F517N, both with and without the filter
       F122M. All three observations were received and displayed in the
       OSS. The first and third observations were reported to be saturated,
       and the second observations was okay. 

   1.8 Completed GHRS/2 2537 (Physical Conditions of Interstellar Gas) 

       The High Resolution Spectrograph was used to make high signal to
       noise ratio data in the direction of standard star HD80007 to study
       the interfaces between the warm and cold regions of the interstellar
       medium. The observations were received in real time. There was a
       deflection calibration followed by a spiral search which found the
       target in the second group. The final flux count of the target was
       19,827. 

   1.9 Initiated FOS/BL 3791 (Quasar Absorption Line Survey)

       The Faint Object Spectrograph was used to initiate absorption line
       survey images of the quasar PG1216+069. The observations are
       currently being executed, and will be analyzed later. 

   1.10 Initiated WFC 4713 (WF/PC Calibration: WFC Internal Delta Flats) 

        The Wide Field Camera was used to initiate internal flat
        observations which will be used for the restoration of Earth flat
        images which were altered due to changes in quantum efficiency
        which occurred after WFPC decontamination operations. The 
        observations are currently ongoing, and will be analyzed later. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 6
                                        Successful : 4

                            (Failure at 074/1300Z and 074/0702Z)
                            Primary was acquired, secondary was not.
                            Dim secondary guide star (variable).

                          Scheduled Reacquisitions : 8
                                        Successful : 8
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 11
                             Successful : 11

   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete FOS/BL 3791 (Quasar Absorption Line Survey)

   3.2 Complete WFC 4713 (WF/PC Calibration: WFC Internal Delta Flats)

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

   3.4 Complete WFC/PC 4109 (WF/PC Calibration: Rapid Internal Monitor)

   3.5 Complete PC 4347 (WF/PC Calibration: Flood Retention Test)

   3.6 Complete GHRS/2 1168 (Interstellar Carbon and Oxygen)

   3.7 Uplink Updated Ephemeris Tables, Per MOSES 2871

   3.8 Complete PC 4140 (WF/PC Calibration: Rapid Internal Monitor, Part 2)

   3.9 Complete GHRS/2 3496 (Ultraviolet Atlas of Sirius)

   3.10 Complete FOC/96 4804 (UV Imaging of Nearby Galaxies wit FOC/96)

   3.11 Initiate WFC 4658 (Determination of Extragalactic Distance Scale)

4.0 ANOMALY STATUS:
	
   4.1 Significant New Anomalies: None

   4.2 Significant Unresolved Anomalies: 

       FGS #2 Anomaly Investigation 

       Further testing and analysis of the FGS #2 anomalous behavior are
       still ongoing. In the interim FGS #2 will not be used for
       observations. 
 
5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time.

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