HUBBLE SPACE TELESCOPE
                               DAILY REPORT #992

PERIOD COVERED:  0800 EST
Daily Status Report as of 286/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/RD 5047 (Cycle 3 FOS Discriminator Test)

       The Faint Object Spectrograph was used to conduct a discriminator
       test. Optimal FOS discriminator settings allow each diode to reject
       noise pulses and to accept real photon pulses. One set of
       observations were received and displayed. It looked okay, except for
       group two, which had anomalously high counts.

   1.2 Completed HSP/PMT 3373 (The Size and Composition of Planetary Ring
       Particles - Cycle 2 High)

       The High Speed Photometer was used to make observations of star
       00460 as it passed behind the rings of the planet Saturn. This is a
       continuation of proposal 1080. The intent is to determine the size
       and the composition of the particles that make up the ring. The OSS
       monitored the observations, and assessed the data quality. A total
       of seven observations were received and displayed. The last four
       observations may have been effected by a 79 arcsecond role around
       the V1 axis.

   1.3 Completed WFC 4713 (WF/PC Cycle 2 Calibration: WFC Internal Delta
       Flats)

       The Wide Field Camera was used to make a total of three internal
       flat calibrations images. All three images were reported to be
       normal.

   1.4 Completed Two Sets of WFC 5013 (WF/PC Cycle 3 Calibration: WFC
       Flats Narrow. 2)

       The Wide Field Camera was used to make Two 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. Both observations were received, and both
       observations were reported to be saturated.

   1.5 Completed FOS/RD 3840 (The Abundance and Time Evolution of Carbon,
       Nitrogen, and Oxygen)

       The Faint Object Spectrograph and the Wide field Camera were used to
       make ultraviolet observations fo the H II regions in galaxy
       SBS0940+54 to measure the abundance of CO and NO. The onboard target
       acquisition on an offset star was successful. Two science
       observations were received and displayed. They both were reported to
       have a very low signal.

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

       The Wide Field Camera was used to make two set of medium-deep high
       latitude sky survey observations taken in parallel with the prime
       science observations. The observations were executed as scheduled,
       and both observations were reported to look fine.

   1.7 Completed PC/WFC 5026 (WF/PC Cycle 3 Calibration: Rapid Internal
       Monitor)

       The Wide Field Camera and the Planetary Camera were used to make
       internal flat calibration images. These images will be used to look
       for measles and daisies (i.e., different forms of contamination),
       and to monitor scattered light. The observations were executed as
       scheduled, and both observations were reported to look normal.

   1.8 Completed Two Sets of WFC 5075 (WF/PC Cycle 3 Calibration: WFC Flats
       Wide. 1)
   
       Observations were made to make two standard calibrations to obtain
       Earth flats using the Wide Field Camera. Both observations were
       taken, and they were reported to be saturated.

   1.9 Completed Two Sets of FOS/BL/RD 5200 (FOS Cycle 3 Scattered - Light
       Calibration)

       The Faint Object Spectrograph was used to make observations of the
       late type star Alpha Orionis (aka, the super giant star
       Betelgeuse) to determine how much of the light from the continuum at
       wavelenghts greater than 3000 A0 is being scattered by the gratings
       and shows up as spectra of weak ultraviolet sources. The first two
       onboard target acquisitions were monitored by the OSS, and they were
       successful.

   1.10 Completed FGS 4893 (Orbital Motions of Close Binary Stars - Cycle 3
       High)

       Fine Guidance Sensor #3 was used to make astrometric observations of
       the binary star system HD214511 to obtain its orbital elements.
       These observations are important since most of the estimates of
       stellar mass are made by observing elements of these systems. The
       astrometry was monitored and no problems were seen in the telemetry.
       
   1.11 Completed Two Sets of PC 4714 (WF/PC 2 Calibration: PC Internal
       Delta Flats)

       The Faint Object Camera was used to make one internal flat
       calibration image which will be used for the restoration of Earth
       flat images, which were altered due to changes in quantum efficiency
       which occurred after decontamination operations. The observations
       was received and displayed in the OSS. It was reported to look okay.

   1.12 Uplinked Updated Ephemeris Tables, Per MOSES 2871

        All six ephemeris were successfully uplinked at 286/0018Z.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5
                          Scheduled Reacquisitions : 10
                                        Successful : 10

                          There was a loss of lock at 286/0733Z near the
                          end of an observation. The subsequent acquisition
                            was successful.

   2.2 FHST Updates:

                              Scheduled : 1
                             Successful : 1

   2.3 Significant HSTARs: None

   2.4 Operations Note:

       The third in a series of Joint Integrated Simulation (JIS) exercises
       was conducted successfully on September 29.  This simulation covered
       the planned activities surrounding the deployment of the HST
       following the servicing mission EVAs.  Personnel from GSFC, HQ, and
       JSC supported this simulation which included nominal timeline
       activities and anomalies. Contingency procedures developed for the
       servicing mission were effectively used to handle the anomalies
       introduced in the simulation.

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

   3.1 Complete Three Sets of FGS 5250 (Intermediate Plate Scale  - Cycle 2
       Calibration - Part 2)

   3.2 Complete Four Sets of PC 4714 (WF/PC Cycle 2 Calibration: PC
          Internal Delta Flats)

   3.3 Uplink Updated Ephemeris Tables, Per MOSES 2871

   3.4 Complete FGS 4893 (Orbital Motions of Close Binary Stars - Cycle 3
       High)

   3.5 Complete FOS/RD 5246 (The Abundance and Time Evolution of Carbon,
       Nitrogen, and Oxygen)

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

   3.7 Complete FOS/RD 5047 (Cycle 3 FOS Discriminator Test)

   3.8 Complete PC/WFC 4770 (WF/PC cycle 3 Calibration: Internal Monitor
       Proposal)

   3.9 Complete FOC/96 4195 (FOC f/96 Detector Focusing - Cycle 2)

   3.10 Complete WFC 5076 (WF/PC Cycle 3 Calibration: WFC Flats Wide. 2)

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-