HUBBLE SPACE TELESCOPE
                               DAILY REPORT #898

PERIOD COVERED:  0800 EST
Daily Status Report as of 152/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FGS 4725 (Scale Cycle 2 Calibration)

       The Fine Guidance Sensors were used to make an astrometric
       observations which will be used to calibrate the central region of
       the astrometric FGS. The observations was made during LOS, and
       remains of the Science Tape recorder. The data will be analyzed
       later. 

   1.2 Completed Three Sets of PC 3603 (Snapshot of Protoplanetary Nebulae)

       The Planetary Camera was used to make three images of the
       protoplanetary system W-Aquilae to study its current morphology. All
       three observations were received and displayed in the OSS. The first
       two images were reported as normal, and the last was reported as
       fine. 

   1.3 Completed Three Sets of FOC/96 4804 (UV Imaging of Nearby Galaxies with 
       FOC/96)

       A grand total of 13 ultraviolet snapshot images were made with the
       Faint Object Camera (f/96) of three different nearby galaxies
       (ESO-1317-2, ESO-2333-3, and UGC-8256). All 13 images were reported
       to be satisfactory. 

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

       The Planetary Camera was used to make one bias, four internal delta
       flat, and two dark calibration observations.  The bias and internal
       flat observations were reported to be normal. The dark images were
       reported to have shown residual images from the K-spot observations. 

   1.5 Completed GHRS/2 4601 (Jupiter's Hydrogen Lyman Alpha Auroral/ 
       Airglow Line Profiles: Cycle 3 Medium)

       The High Resolution Spectrograph as used to make "sky background"
       observations with will be used for calibration of observations of
       Hydrogen emission studies of Jupiter's atmosphere. A total of four
       observations were made, and they were reported to  be satisfactory. 

   1.6 Completed FOC/96 4800 (The Stellar Content of Wolf - Rayet Galaxies 
       (FOC Images))

       The Faint Object Camera (f/96) was used to make ultraviolet images
       of the Wolf- Rayet galaxy POX4. This is a star bursting galaxy which
       is showing broad emission lines in Helium II at 4686 A0 from stellar
       sources. The observations were executed as scheduled, and no
       problems were reported. 

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

       The Wide Field Camera was used to make high latitude medium-deep sky
       survey images which were taken in parallel with the prime science
       observations. The observations were monitored in the OSS, and the
       data quality was assessed. No problems were reported. 

   1.8 Completed FGS 2859 (Linking HIPPARCOS to the Extragalactic Reference 
       Frame Part 2 of 6)

       Astrometric observations were made with Fine Guidance Sensor #3 on
       the extragalactic object 1758-651IN and on a field of nearby stars.
       The observations were executed as scheduled, and monitored in the
       OSS. No problems were reported. 

   1.9 Completed FGS 4031 (High Speed Astrometry - A search for Planetary 
       Companions to Low Mass)

       The Fine Guidance Sensors were used to make astrometric observations
       of the star Proxima Centauri to look for a Jupiter sized planet in
       orbit around the target star as measured from the position
       perturbations caused by the planet. The observations were executed
       as scheduled, and no problems were reported. 

   1.10 Completed FOC/96 4152 (FOC Observations to Monitor Distortion)

       The Faint Object Camera (f/96) was used with filter F486N to monitor
       the focus of the HST OTA looking for changes due to desorption. A
       total fo five images were taken. A corrective offset maneuver was
       calculated and sent to the spacecraft after the first image. All
       subsequent images were reported to be normal. 

   1.11 Completed FOC/96 4153 (FOC UV Throughput Monitoring)

       The Faint Object Camera was used to make five observations of the
       standard star PMB16274 to determine the ultraviolet throughput of
       the HST-FOC. The first image was received and displayed. Based on
       its contents a corrective maneuver was calculated and uplinked to
       the spacecraft. The remaining observations were reported to be
       satisfactory. 

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

       Both the Wide Field Camera and the Planetary Camera were used to
       make internal flat images looking for new forms of contamination
       (i.e., daises and Measles), and the possible return of quantum
       efficiency hysteresis. Both observations were received and displayed
       in the OSS. Both were reported to be satisfactory. 

   1.13 Completed Two Sets of PC 4929 (WF/PC cycle 2: Improved Dark
        Calibration) 

       The Planetary Camera was used to make two sets of two each internal
       dark calibration images. All four images were 1200 second long
       exposures, and all were preflashed. All four observations were
       reported to be satisfactory. 

   1.14 Completed FOS/BL 3683 (Accretion Disk Mapping in Eclipsing
        Cataclysmic variables) 

       The Faint Object Spectrograph was used to make rapid mode
       observations of the cataclysmic variable star IP Pegasi during the
       eclipse with its accretion disk. The onboard target acquisition was
       successful. The spectral observations were monitored and appear to
       be very successful. 

   1.15 Uplinked Updated Ephemeris Tables, Per MOSES 2871

   1.16 Completed GHRS/96 4569 (A Search for Microflaring Activity in Dwarf 
        M Stars - Cycle 3 High)

       The High Speed Photometer was used to make observations of the dwarf
       star CN Leonis looking for microflares which have short duration and
       occur with numbers inversely proportional to the flares energy. The
       onboard target acquisitions left the target well centered. The
       scientific observations were received in the OSS. No anomalies were
       noted. 

   1.17 Completed GHRS/2 3444 (Composition of Gas in Individual 
        Interstellar Clouds: Cycle 2 Augmentation)

       The High Resolution Spectrograph was used to make spectral
       observations of early type star HD215733. The target acquisitions
       were executed without problems. The wavelenght calibration and the
       science observations were received and displayed. They all were
       reported to look okay. 

   1.18 Completed WFC 4277 (Calibration of Nearby Galaxy Type IA Supernova 
        as Standard Candles)

       The Wide Field Camera was used to make two images of galaxy NGC-5253
       to help determine the periods of Cepheid variable stars contained
       within the galaxy. This will make it possible to accurately
       determine the distance to this galaxy. Two brief recentering events
       were reported to have occurred during the first image. No anomalies
       were reported during the second image. 

   1.19 Completed FOS/BL 4222 (Mass Exchange Binaries (FOC 34) - Cycle 1)

       The Faint Object Spectrograph (Blue Side) was used to make spectral
       observations of the binary star HZ Herulis. This is a binary system
       having a normal star with a contact companion. The observations were
       made in the rapid mode using grating G160L to learn more about the
       soft X-ray flux from the compact star. The OSS monitored the
       observations and assessed the data quality. No problems were
       reported. 

   1.20 Completed Two Sets of PC 3848 (Separate Light ?curves for Pluto and 
        Charon)

       The Planetary Camera was used to make a total of four images of the
       planet Pluto and its moon Charon individually. All four images were
       reported to look fine. 

   1.21 Completed FOC/96 4846 (High Resolution Observations of Cataclysmic 
        Variables: Cycle 3)

       The Faint Object Camera (f/96) was used to make two images of the
       complex regions of nebulosity surrounding Nova Cygni 1992. A couple
       of recentering events occurred during the observations, however, no
       anomalies were reported in the images. The observations were
       displayed for the principal investigator, and several hard copies
       were made. 

   1.22 Completed WFC 4848 (GTO Low Latitude Parallel Program Cycle 3 High) 

       The Wide Field Camera was used to make a series of low latitude
       observations taken in parallel with the prime science observations.
       There was a recentering event reported during the observations, but
       no problems were noted with the telemetry. The observations were
       received and displayed, and no anomalies were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 26
                                        Successful : 26
                          Scheduled Reacquisitions : 22
                                        Successful : 22
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 53
                             Successful : 51

                           149/2306Z, HSTAR-4103, a roll delay update to 
                           correct for accumulated V1 errors. Subsequent
                           acquisitions A-Okay. 

                           151/1758Z, HSTAR-4107 Update trackers 2 & 3 
                           failed, Tracker 2 failed all three iterations.
                           subsequent Acquisitions A-Okay. 

   2.3 Significant HSTARs: None

   2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete FOC/96 3801 (Search for QSOs Suitable for Subsequent 
       Observations of He II)

   3.2 Complete GHRS/2 4601 (Jupiter's Hydrogen Lyman Alpha Auroral/Airglow 
       Line Profile)

   3.3 Complete Three Sets of FOC/96 4804 (UV Imaging of Nearby Galaxies 
       with FOC/96)

   3.4 Complete PC 3887 (Integrated Dynamical and Spectroscopic 
       Observations of Jupiter and Satellites)

   3.5 Complete WFC/PC 4109 (WF/PC cycle 2 Calibrations: Rapid Internal 
       Monitor)

   3.6 Complete PC 3603 (Snapshots of Protoplanetary Nebulae)

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-