HUBBLE SPACE TELESCOPE
                               DAILY REPORT #913

PERIOD COVERED:  0800 EST
Daily Status Report as of 173/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three Sets of WFC 4277 (Calibration of Nearby Galaxies Type 
       IA Supernaovae as Standard Candles)

       The Wide Field Camera was used to make three observations of the
       galaxy NGC-5253 to determine the periods of its known Cepheid
       variable stars. This will make it possible to accurately determine
       the distance to this galaxy. The observations were reported to be
       okay. 

   1.2 Completed WFC 4770 (WF/PC Cycle 2 Calibration: Internal Monitor 
       Proposal)

       The Wide Field Camera was used to make one bias and one dark
       calibration images. These data are required for routine calibration
       of the instrument and for data reduction purposes. Both of the
       observations were reported to be normal calibration images. 

   1.3 Completed PC 4929 (WF/PC Cycle 2: Improved Dark Calibration)

       The Planetary Camera was used to make two dark calibration images.
       Both exposures lasted 1200 seconds, and the camera was pre-flashed.
       Both calibrations images were reported to be normal. 

   1.4 Completed FOC/96 3801 (Search for QSOs Suitable for Subsequent 
       Observation of He II 304)

       The Faint Object Camera was used to attempt to make observations of
       quasar 1406+123 to measure the levels of its ultraviolet flux, to
       see if the flux levels are high enough for subsequent observations
       using the GHRS and FOS. The guide star acquisition prior to the
       observation failed to attain fine lock, and to observation was
       completed in course track. (See Note 2.1) 

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

       The Faint Object Camera was used to make one ultraviolet snapshot
       image of nearby galaxy ESO-0241-2. The exposure lasted for ten
       minutes and used filter F220W. The observation was received via the
       science tape recorder playback and displayed in the OSS. No problems
       were noted with the data. 

   1.6 Completed WFC 5010 (Determination of the Extragalactic Distance 
       Scale. III. M-101. Recovery)

       The Wide Field Camera was used for a search of Cepheid variable
       stars in the Sc class spiral galaxy M-101 (aka, NGC-5457) located in
       Ursa Major. This will help determine the correct distance to this
       galaxy. This distance will be used to find the true luminosity of
       the type-Ia class supernova which has been observed in this galaxy.
       The observations were executed as scheduled, and no problems were
       reported. 

   1.7 Completed PC/WFC 4109 (WF/PC Cycle 2 Calibration: Rapid Internal 
       Monitor)

       Rapid Internal Monitoring observations were made with both the Wide
       Field Camera and the Planetary Camera using filter F555W to look for
       new forms of contamination (i.e. daises and measles), and the
       possible return of quantum efficiency hysteresis. The observations
       were monitored in the OSS, and the data quality was assessed. No
       problems were reported. 

   1.8 Completed PC 4140 (WF/PC Cycle 2 Calibration: Rapid Internal Monitor)

       The WFPC was used to make internal flat calibrations images to check
       for new forms of contamination (i.e., Daises and measles), and to
       check for the possible return of quantum efficiency hysteresis. The
       observations completed as scheduled, and no problems were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 6
                                        Successful : 5

                            Primary Acq. failed in Fine Lock
                            at 172/1405Z, Successful in Course
                            Track. Subsequent Acqs. A-Okay. (See Note 1.4) 

                          Scheduled Reacquisitions : 6
                                        Successful : 6
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 10
                             Successful : 10

   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete WFC 4277 (Calibration fo Nearby Galaxy Type IA Supernovae 
       as Standard Candles)

   3.2 Complete Three Set of PC 4770 (WF/PC cycle 2: Internal Monitor 
       Proposal)

   3.3 Complete WFC 5010 (Determination of the Extragalactic distance 
       Scale. III. M-101. Recovery)

   3.4 Complete Two Sets of PC 4213 (Spectrophotometry of Lensed, "Clover 
       Leaf" Broad Absorption Lines)

   3.5 Complete PC 4393 (Disks Around Main Sequence Stars: Cycle 3 High)

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

   3.7 Uplink Updated Ephemeris Tables, Per MOSES 2871
 
   3.8 Complete FOC/96 4353 (Hubble Space Telescope Imaging of IO: cycle 3 
       High)

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.

/DMH                        -END-