HUBBLE SPACE TELESCOPE
                               DAILY REPORT #887

PERIOD COVERED:  0800 EST
Daily Status Report as of 134/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/RD 4817 (Quasar Absorption Line Survey: Cycle 2 
       Observations)

       The Faint Object Spectrograph (Red Side) was used to make three
       observations of quasar PG1718+481. Both onboard target acquisitions
       were successful. All three images were reported to look fine. 

   1.2 Completed FOC/96 3504 (High Spatial Resolution Imaging and 
       Spectroscopy of AGNs: Cycle 2)

       The Faint Object Camera was used to make polarization images of the
       active galactic nucleus of radio galaxy 3C305.  Its is hoped that
       this will proved information about the source hidden behind the
       obscuring torus. Six images were received and displayed. There were
       two recentering events reported, one for the second and one for the
       fourth images. 

   1.3 Completed WFC 4849 (GTO High Latitude Parallel Program: Cycle 3 High)

       The Wide Field Camera was used to make high latitude sky survey
       observations taken in parallel with the prime science observations.
       Two observations were received and displayed. No unexpected problems
       were noted. 

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

       The Faint Object Camera (f/96) was used to make two images of
       quasi-stellar object 2204-408 to measure its levels of ultraviolet
       flux. It is hoped that this object can be used for future
       observations with the GHRS and FOS. The first image was reported to
       be okay. A recentering even was reported to have occurred during the
       second image exposure. 

   1.5 Uplinked Updated Ephemeris Tables, Per MOSES 2871

   1.6 Completed GHRS/2 3664 (Probing the Gas of the Superbubble LMC2)

       The High Resolution Spectrograph was used to make observations of OB
       class star SK69276 which is located in Superbubble #2 in the Large
       Magellanic Cloud. Four observations were received in real time. The
       flux level was reported to be 7789. 

   1.7 Completed FOS/BL 4054 (Probing the Nuclear Regions of Seyfert galaxy 
       NGC-5548)

       The Faint Object Spectrograph (Blue Side) was used to make spectral
       observations of Seyfert galaxy NGC-5548 to look for time variations
       in its continuum, and emissions in Helium II and Carbon IV. The
       observations were executed as scheduled, and no problems were
       reported. 

   1.8 Completed WFC 4381 (HST Medium-Deep Survey - Cycle 3)

       The Wide Field Camera was used to make some high latitude
       medium-deep sky survey images (Cycle 3) taken in parallel with the
       prime science observations. The OSS monitor the observations and
       assessed the data quality. No problems were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 4
                                        Successful : 4
                          Scheduled Reacquisitions : 8
                                        Successful : 8
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 9
                             Successful : 9

   2.3 Significant HSTARs: None

   2.4 Operations Note: 

       Week Summary (5/7/92 - 5/14/93):           

       Wednesday May 12, 1993

       Bus C Gyro 1 Turn-on Test

       The Bus C activation and Gyro 1 turn-on test was executed on the
       spacecraft on Tuesday, May 11. Commands to close Bus C were executed
       about 2:57 PM local time. Analysis of the R format data showed a
       raise in current of about 11 amps for about 300 milliseconds. This
       appears to have been the transfer switch closing. 

       Commands to turn-on Gyro 1 were sent about 5:07 PM local time. The gyro
       did not come on. A second try to command the gyro on was made and this
       was also unsuccessful. 

       A second Bus C activation was done about 8:13 PM Tuesday night. Bus C was
       commanded open and then commanded closed again. This second activation
       was done to further characterize the current profile of the transfer
       switch closing. A similar, but not identical, signature was observed
       during the second Bus C activation. Bus C was commanded open and the
       spacecraft was restored to normal operational configuration. 

       Thursday May 13, 1993

       The GSFC Internal Simulation (Type 1 + Replan) was conducted on
       Wednesday, May 12, and Thursday May 13. No major problems were 
       reported. 

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete GHRS/2 3880 (Curcumstellar and Interstellar Absorption 
       Lines in Planetary Nebulae)

   3.2 Complete FGS 4724 (Seven Point of Light Cycle 2 Calibration)

   3.3 Complete GHRS/2 3496 (An Ultraviolet Atlas of Sirius: Constraining 
       Model Stellar Atmospheres)

   3.4 Complete WFC 4207 (WF/PC cycle 2 Calibration: photometric Calibration 
       Monitor)

   3.5 Complete Two Sets of FOS/BL 4054 (Probing The Nuclear Regions of the 
       Seyfert Galaxy NGC-5548)

   3.6 Complete Two Set of WFC 4381 (HST Medium-Deep Survey - Cycle 3)

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

   3.8 Complete WFC/PC 4109 (WF/PC Cycle 2 Calibration: Rapid Internal 
       Monitor)

   3.9 Complete PC 4712 (WF/PC Cycle 2 Calibration: Measles Monitor)

   3.10 Uplink Updated Ephemeris Tables, Per MOSES 2871

   3.11 Complete GHRS/2 3513 (Non-Lte Analysis of the Population II 
        Post-AGB Stars ROB 162 and K648)

4.0 ANOMALY STATUS:
	
   4.1 Significant New Anomalies: None

   4.2 Significant Unresolved Anomalies: 

       Implementation of the seven strategies to extend the operational
       life of the Fine Guidance Sensor (FGS) units continued to make good
       progress. Efforts on Stategy-1, maximizing the use of fine lock and
       minimizing the use of course track, have produced significant
       results. 

5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time.

/DMH                        -END-