HUBBLE SPACE TELESCOPE
                              DAILY REPORT #1290

PERIOD COVERED:  0000Z
Daily Status Report as of 355/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 5563 (WF/PC-2 Cycle 4 Photometric Calibration 
       Monitor 1: UV /OPT STD.)

       The WF/PC-2 was used to make photometric calibration images of
       ultraviolet standard star GRW+70D582 and monitor the photometric
       stability and quantum efficiency of the WF/PC-2. The observations
       were executed as scheduled, and no anomalies were noted. 

   1.2 Completed WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal
       Monitor. 1) 

       The WF/PC-2 was used to make several internal bias, K-Spot, and flat
       calibration observations to monitor the CCD camera electronics, the
       optical alignment, and to check for contamination. There was a tape
       recorder track change while a observation was writing to tape; this
       resulted in a data loss of one group. No other anomalies were noted. 

   1.3 Completed WF/PC-2 5655 (WF/PC-2 Cycle 4 Calibration: Internal
       Monitor. 2: Flats Part 2) 

       The WF/PC-2 was used to make both dark and visual flats. The
       observations were completed as planned, and no problems were reported.


   1.4 Completed FOS/RD 5391 (Mapping the Hydroxyl Distribution in the
       Saturn Magnetosphere: Cycle 4) 

       The Faint Object Spectrograph (Red Side) was used to make
       observations of regions near the planet Saturn (SATH1) to study the
       distribution of hydroxyl radical (OH) in its magnetosphere. Earlier
       investigations with HST have found the amount of OH to be
       unexpectedly high. The observations were executed as scheduled, and
       no anomalies were noted. 

   1.5 Completed GHRS/2 5600 (GHRS Side 2 Wavelength Monitor (1st Order 
       Gratings): Cycle 4)

       The High Resolution Spectrograph (Side Two) was used to make
       wavelength and resolution calibration observations of its first
       order gratings using the internal calibration lamp. The observations
       were completed as planned, and no anomalies were reported. 

   1.6 Completed FOC/96 5175 (Physics of Asteroids: Cycle 4)

       The Faint Object Camera (F/96) was used to make observations of the
       asteroid Vesta to look for surface features and to determine the
       shape and diameter of the asteroid. The observations were completed
       as planned, and no problems were reported.

   1.7 Completed WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration: Internal
       Monitor 3: Darks) 

       The WF/PC-2 was used to obtain several 30-minute long, dark
       exposures to provide ongoing calibration of the CCD dark current and
       to monitor and characterize the evolution of hot pixels. The
       observations were executed as scheduled, and no anomalies were
       noted. 

   1.8 Completed FGS 5657 (Duplicity Among Hyades Stars: Cycle 4 High) 

       The FGSs (TRANS-Mode) were used to make astrometric observations of
       star VA709 located in the Hyades cluster in an attempt to find a
       close binary. The observations were executed as scheduled, and no
       anomalies were noted. 

   1.9 Completed WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4) 

       The WF/PC-2 was used to make observations taken in parallel with the
       prime science observations. This is part of a survey to take
       pictures of a large number of fields within 30 degrees of the
       galactic plane. The observations were completed as planned, and no
       problems were reported. 

   1.10 Completed WF/PC-2 5401 (Luminosities and Morphologies of a Complete 
       3CR Sample of Radio Galaxies)

       The WF/PC-2 was used to obtain images of radio galaxy 3C280, which has
       a Z near 1.0, and also is a quasar. These observations will be used
       to determine and compare luminosities, and morphologies in the
       optical and infrared. The observations were executed as scheduled,
       and no anomalies were noted. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 4
                                        Successful : 4

                          Scheduled Reacquisitions : 9
                                        Successful : 9

   2.2 FHST Updates: 

                              Scheduled : 11
                             Successful : 11

   2.3 Significant HSTARs: None

   2.4 Operations Notes: 

       HST operations continue to be supported via WSGT as the STGT is now
       re-scheduled to recover from its power problems at 356/0630Z. 

       The modified "H" format was uplinked yesterday and activated for use
       at 354/1300Z.  This format was utilized for the RMGA full
       calibration which was nominally completed at 354/1734Z. The Safemode 
       analysts commanded the PSEA and monitored the telemetry without any
       difficulty. The calibration software, which had been previously
       modified via a workaround, worked flawlessly. The RMGA drift rate
       bias continues show a slight change for RMGA 2 and no change for
       RMGAs 1 and 3. 

3.0 ANOMALY STATUS:

   3.1 Significant New Anomalies: None

   3.2 Significant Unresolved Anomalies: None

4.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.


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