HUBBLE SPACE TELESCOPE
                               DAILY REPORT #953

PERIOD COVERED:  0800 EST
Daily Status Report as of 230/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FGS 5056 (High Speed Astrometry - A Search for Planetary
       Companions to Low Mass) 
 
       The Fine Guidance Sensors were used to make astrometric observations
       of Bernard's star to look for the presence of a Jupiter sized planet
       in orbit around the target star from the position perturbations
       caused by the planet. The astrometric observations were monitored in
       the OSS, and no problems were seen in the telemetry. 

   1.2 Completed PC 4308 (Snapshot Survey for Companions to Planetary -
       Nebula Nuclei - Cycle 3 High) 

       The Planetary Camera was used to make an observation of the central
       region of planetary nebula SAND3. It is possible that the central
       star in a double star. The observations was received and displayed
       in the OSS, the data was reported to be normal. 

   1.3 Completed FGS 5060 (Linking HIPPARCOS to the Extragalactic Reference
       Frame Part 2 of 6) 

       The Fine Guidance Sensor were used to make astrometric observations
       of several objects. The observations will be used to determine the
       rotation of the reference frame used by the HIPPARCOS astrometry
       satellite. The observations occurred completely during LOS. The OSS
       personnel were unable to monitor the observations. The observations
       remain on the science tape recorder, and will be analyzed later. 

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


       The Planetary Camera was used to make four 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 two were reported
       to be okay, and the other two were saturated. 

   1.5 Completed PC 4940 (Post Asymptotic Giant Branch Evolution in the

       Magellanic Clouds)

       The Planetary Camera was used to make two images of the planetary
       nebula LMC-SMP-101 which is located in the Large Magellanic Cloud.
       These observations will provide information on the morphology, size,
       and dynamical age of the object. Both observations were displayed,
       and they were reported to look okay. 

   1.6 Uplinked Updated Ephemeris Tables, Per MOSES 2871 

   1.7 Completed FGS 5059 (Seven Points of Light Cycle 2 Calibration -
       Fixed) 

       The Fine Guidance Sensors were used to make observations of standard
       star UPGREEN-69. The objective was to calibrate the single star
       interferometeric fringe pattern at seven different points in the
       central region of the astrometric FGS. The astrometric observations
       were monitored and no problems were seen in the telemetry. 

   1.8 Completed PC 4903 (The Nuclei of Nearby S0 and Spiral Galaxies - II
       A PC Snapshot Imaging) 

       The Planetary Camera was used to make snapshot images of the
       low-redshift galaxies NGC-1326 and NGC-1389 to study their surface
       brightness, identify sub-arcsecond condensations, look for point
       sources, and look for a stellar or gaseous disk and dust lanes. Both
       observations were received and displayed in the OSS. The first
       observation was reported to look okay, and the second observation
       was reported to be weak. 

   1.9 Completed Three Sets of WFC 5013 (WF/PC Cycle 3 Calibration: WFC

       Flats Narrow. 2)

       The Wide Field Camera was used to make four 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. A total of four observations were received.
       Two observations were reported to be saturated, and the others two
       were okay. 

   1.10 Completed PC 4712 (WF/PC Cycle 2 Calibration: Measles Monitor)

       The Planetary Camera was used to make Earth Calibration Flat images
       to monitor fo a form of contamination known as measles. The
       observations used filter F517N, both with and without filter F122M.
       The OSS monitored the observation and assessed the data quality. No
       problems were reported. 

   1.11 Completed PC 5020 (Separate Light Curves for Pluto and Charon -

        Split of 3848)

        The Planetary Camera was used to make photometry observations of
        the planet Pluto and its moon Charon. Separate observations were
        also made of a comparison star. The objective was to obtain
        improved albedo mapping of Pluto and its satellite. The
        observations were made in fine lock. They were received in real
        time and displayed in the OSS. They were reported to look okay.


   1.12 Completed FOS/BL 4275 (The Origin of the Strong Soft X-Ray Excess

       Found in Seyfert Galaxies)

       The Faint Object Spectrograph (Blue Side) was used used to make
       observations of a Seyfert I class galaxy RPX03233-4 which exhibits
       an unusual lack of correlation between soft X-Ray emission and the
       ultraviolet emissions. The observations were monitored in the OSS,
       and the data quality was assessed. No problems were reported with
       the telemetry. 

   1.13 Completed WFC 4381 (HST Medium Survey - Cycle 3)

       The Wide Field Camera was used to make a set of medium-deep high
       latitude sky survey observations taken in parallel with the prime
       science observations. The observations were executed as scheduled,
       and no problems were reported. 

   1.14 Completed FGS 5065 (Intermediate Plate Scale Cycle 2 Calibration)


       Fine Guidance Sensor #3 was used to make a calibration observation
       of standard star HD65949 to make plate scale calibrations in the
       central region of the astrometry FGS. The observations were executed
       as scheduled, and no problems were reported. 

2.0 FLIGHT OPERATIONS SUMMARY: 

    2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 12
                                        Successful : 12
                          Scheduled Reacquisitions : 3
                                        Successful : 3
                                    Losses of Lock : 0

   2.2 FHST Updates: 

                              Scheduled : 26
                             Successful : 26

   2.3 Significant HSTARs: None

   2.4 Operations Note: 

       On Day 230, the On-Orbit Test of the Magnetic Field Model was
       successfully conducted and operationally verified. This test
       demonstrated that the Magnetic Field Model can be used in place of
       the Magnetic Sensing System (consisting of two Magnetometers) to
       provide proper system momentum dumping and Reaction Wheel
       Desaturation during normal operations. Also verified was the
       successful uplink and transition between Magnetic Field Model table
       loads, as part of the routine ephemeris uplink scenario. 

       The test procedure simply consisted of changing the telemetry format
       to provide higher telemetry sampling resolution, and modifying a
       location in the Variable Database to select the Magnetic Field
       Model, instead of the Magnetometers, for use in the Vehicle Control
       Law. Test performance was determined by analysis of the system
       momentum and Reaction Wheel speeds, as well as a comparison of the
       Magnetic Field Model reading with the Magnetometer values. 

       The test period included several vehicle slews, as well as
       occurrence of South Atlantic Anomaly (SAA#1) regions, while running
       in the background of normal science operations. Throughout the test
       period, there were no discontinuities and all performance was
       nominal. At the completion of the test, the Variable Database
       location was modified to switch from the Magnetic Field Model, back
       to the Magnetometers as the active control law input. 

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD: 

   3.1 Complete PC 5020 (Separate Light Curves of Pluto and Charon - Split

       of 3848)

   3.2 Complete GHRS/2 1189 (Zeta Orph.> Interstellar Molecules - Cycle 2)

   3.3 Complete WFC 5013 (WF/PC Cycle 3: WFC Flats Narrow. 2)

   3.4 Complete WFC/PC 5026 (WF/PC Cycle 3 Calibration: Rapid Internal

       Monitor)

   3.5 Complete HSP/UV2 4307 (Radial and Non-Radial Pulsations in Hot White

       Dwarfs - Cycle 3 Medium)

   3.6 Complete FGS 5062 (Scale Cycle 2 Calibration - Fixed)

   3.7 Complete PC 5014 (WF/PC Cycle 3 Calibration: PC Flats Narrow. 2)

   3.8 Complete FOS/BL/RD 4976 (UV Rotational Light Curves for Pluto, and

       Charon's UV Spectrum - Split)

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-