HUBBLE SPACE TELESCOPE
                               DAILY REPORT #944

PERIOD COVERED:  0800 EST
Daily Status Report as of 217/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WFC/PC 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. The
       principal investigator reviewed the observation. A fast track tape
       was made and given to the principal investigator. 

   1.2 Completed PC 4140 (WF/PC Cycle 2 Calibration: Rapid Internal Monitor  
       - Part 2)

       The WFPC was used to make two internal flat calibration 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 the principal
       investigator reviewed the observations. A fast track tape was made. 

   1.3 Uplinked Updated Ephemeris Tables, Per MOSES 2871

   1.4 Completed Two Sets of WFC 4292 (Determination of the Masses and
       Densities of Pluto and Charon - Cycle 3) 

       The Wide Field Camera was used to make four observations of the
       planet Pluto, its moon Charon, and a nearby reference standard star.
       These images will be used to determine the motion of Pluto about the
       Pluto/Charon barycenter which will make it possible  to compute the
       mass ratio of the two bodies and put constraints on their masses and
       densities. All four observations were received and displayed. No
       anomalies were reported. A fast track tape was made for the WFPC
       team to use in the analysis of the recent decontamination
       activities. The target images were measured and located, and the
       numbers FAXed to the principal investigator. 

   1.5 Completed WFC/PC 4739 (WF/PC Cycle 2 Calibration: Single Chip UV 
       Calibration)

       The WF/PC was used to perform a ultraviolet quantum efficiency
       calibration using filters F194W, F230W, and F284W using images from
       standard star BD+75D325. A total of twelve images were taken and
       displayed. They were reported to look okay. A fast track tape was
       made. 

   1.6 Completed PC 4738(WF/PC Cycle 2 Calibration: UV Flats 1) 

       The WFPC was used to make six images of the Earth to provide flat
       field images for calibration of the ultraviolet observations. All
       six images were received and displayed. Two were underexposed, one
       was partially saturated, and three were reported to be okay. 

   1.7 Completed PC 5014 (WF/PC Cycle 3 Calibration: PC Flats Narrow. 2) 

       The Planetary Camera was used to make two standard Earth
       calibrations images for flat fielding of PC observations. Medium and
       narrow filters were used, with and without neutral density filters.
       The observations were executed as scheduled, and both image were
       reported to be underexposed. A fast track tape was made. 

   1.8 Completed GHRS/2 3845 (Deciphering the UV Emission Lines in T Tauri 
       Systems) 

       The High Resolution Spectrograph was used to make five ultraviolet
       spectral observations of the T-Tauri class star DR-Tauri to study
       the width and shape of its emission lines which will put constraints
       on the type of mechanism producing these lines. One wavelength
       calibrations and five spectral observations were received and
       displayed. No problems were reported. Two of the observations still
       remain on the science tape recorder, and will be analyzed later. 

   1.9 Completed WFC 5013 (WF/PC Cycle 3 Calibration: WFC Flats Narrow. 2) 

       The Wide Field Camera was used to make Earth flat calibration images
       to be used for flat fielding of WFC observations. The observations
       used the narrow band filters, both with and without neutral density
       filters. The observations were executed as scheduled, and no
       problems were reported. 

   1.10 Completed FGS 5067 (Orbital Parameters of Known Binary, Sequel -
       Fixed) 

       The fine Guidance Sensor #3 was used in the transfer mode to make
       observations of star SAO0103656 and star UPGREN69, both of which are
       suspected to be binary stars with a separation of less than 10
       milliarcseconds The OSS monitored the observations and assessed the
       data quality. No problems were reported.. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 7
                                        Successful : 7
                          Scheduled Reacquisitions : 5
                                        Successful : 5
                                    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 FGS 5055 (A Critical Test fo the Galactic Escape Velocity 
       at R(SUN): Cycle 1 OBS)

   3.2 Complete WFC 4292 (Determination of the Masses and Densities of 
       Pluto and Charon Cycle 3)

   3.3 Uplink Updated Ephemeris Tables, Per MOSES 2871

   3.4 Complete FOS 4342 (Damped Lyman Alpha Absorption Lines From 
       Low-Redshift Galaxies - Cycle 3 Medium)

   3.5 Complete WFC 4381 (HST Medium - Deep Survey - Cycle 3)

   3.6 Complete PC 3872 (Blue Stragglers in the Cores of Globular Clusters)

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.