HUBBLE SPACE TELESCOPE
                               DAILY REPORT #846

PERIOD COVERED:  0800 EST
Daily Status Report as of 077/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WFC 4658 (Determination of Extragalactic Distance Scale)

       The Wide Field Camera was used to make two images of sections of the
       galaxy M-101 (aka, NGC-5457) to look for Cepheid variable stars. The
       baseline guide star acquisition failed due to an attitude error. An
       Attitude Reference Update/ Planned Real-Time Slew (ARU/PRT) was
       uplinked to the spacecraft. The exposures were made in course track.
       During the first exposure the gyros were commanded into High Mode in
       real-time. A loss of lock occurred about five times. The gyros were
       then commanded back to Low Mode. When the image was displayed it was
       smeared. The second image was reported to look okay. 

   1.2 Completed FOC/96/WFC 3325 (Structure of Globular Clusters) 

       The Faint Object Camera and the Wide Field Camera (f/96) were both
       used in parallel to make images of the giant globular cluster Omega
       Centauri (aka, NGC-5139). All of the FOC and all of the WFPC images
       were "excellent". 

   1.3 Initiated GHRS/2 3755 (Absorption Cross-section of Nearby Galaxies)

       The High Resolution Spectrograph was used to initiate observations
       of quasar 1543-489 which will be used to probe for absorption lines
       produced by the halos of foreground galaxies. The first acquisition
       was successful, and the target had a flux of 544. During the second
       observation there was six losses of lock while the gyros were being
       run in the High Rate Mode. Lock was recovered each time. The 
       observations are still ongoing, and will be analyzed later. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 2
                                        Successful : 1

                            (Failure at 076/1225Z, See Note 1.1)

                          Scheduled Reacquisitions : 12
                                        Successful : 12
                                    Losses of Lock : At least 2 times

                                      (See Note 1.1, and 1.3) 

   2.2 FHST Updates: 

                              Scheduled : 6
                             Successful : 5

                              (Failure at 076/2151Z)


   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete GHRS/2 3755 (Absorption Cross-Section of Nearby Galaxies)

   3.2 Complete Three Sets of FOC/96 3325 (UV Imaging of Nearby Galaxies
       With FOC/96) 

   3.3 Complete GHRS/2 1177 (Search For Hot Plasmas in Outer Atmosphere)

   3.4 Uplink Updated Ephemeris Tables, Per MOSES 2871

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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