HUBBLE SPACE TELESCOPE
                               DAILY REPORT #993

PERIOD COVERED:  0800 EST
Daily Status Report as of 287/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three Sets of FGS 5250 (Intermediate Plate Scale  - Cycle
       2 Calibration - Part 2)

       Fine Guidance Sensor #3 was used to make a calibration observation
       of about  15 standard stars to make plate scale calibrations in the
       central region of the astrometry FGS. These standard stars were also
       viewed with the HIPPARCOS astrometry satellite. The observations
       were executed as scheduled. The first set of observations could not
       be monitored because there was nor telemetry in the OSS, and part of
       the second set of observations occurred during LOS. Only a few of
       the last observations were monitored. It was reported that the STOP
       flat was set for the last observation.

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

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

   1.3 Uplinked Updated Ephemeris Tables, Per MOSES 2871

   1.4 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 HD61994 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
       observation occurred while no telemetry was available, so they were
       not monitored.

   1.5 Completed FOS/RD 5246 (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 of the H II regions in galaxy NGC-2363
       to measure the abundance of CO and NO. Two observations were
       obtained, and the onboard target acquisition was successful.
       However, the confirmation image of the actual target showed that the
       bright part of the object was near the edge of the aperture. The
       spectral observations were reported to be rather weak.

   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 the images were reported to look fine.

   1.7 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. The discriminator test was
       monitored, and it appeared to proceed normally. The resulting output
       data showed a gradually-diminishing signal.

   1.8 Completed PC/WFC 4770 (WF/PC cycle 3 Calibration: Internal Monitor
       Proposal)

       The Wide Field Camera was used to make one KSPOT and three dark
       calibration images. These data are required for routine calibration
       of the instrument and for data reduction purposes. The dark exposure
       showed some residual images from the KSPOT observation.

   1.9 Completed FOC/96 4195 (FOC f/96 Detector Focusing - Cycle 2)

       The Faint Object Camera (f/96) was used to make observations of
       object NGC-104 as part of a routine test of the internal focus of
       the image intensifier tube. The observations were executed as
       scheduled, and no problems were reported.

   1.10 Completed WFC 5076 (WF/PC Cycle 3 Calibration: WFC Flats Wide. 2)

       Routine Earth flat calibration exposures were taken with the Wide
       Field Camera. The observations were monitored in the OSS, and the
       data quality was assessed. No problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 3
                                        Successful : 3
                          Scheduled Reacquisitions : 7
                                        Successful : 7


   2.2 FHST Updates:

                              Scheduled : 5
                             Successful : 5

   2.3 Significant HSTARs: None

   2.4 Operations Note:

       The FGS #3 Spin Test was successfully executed last night
       (Wednesday, Oct. 13, 1993) at 8PM. The test lasted for two hours.
       All test objectives were met. No problems were reported.

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

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

   3.2 Complete PC 5072 (WF/PC Cycle 2 Calibration: PC Flats Wide. 1)

   3.3 Complete FGS 5057 (Extragalactic Astrometry and Astrophysics FT0-11,
       Part 1 fo 2)

   3.4 Complete Three Sets of WFC 4848 (GTO Low Latitude Parallel Program
       - Cycle 3 High)

   3.5 Complete FGS 5059 (Seven Points of Light - Cycle 2 Calibration -
       Fixed)
  
   3.6 Complete FGS 4893 (Orbital Motions of Close Binary Stars - Cycle 3
       High)

   3.7 Complete GHRS/2 4541 (Cepheid Masses - Cycle 3 High)

   3.8 Complete WFC 4713 (WF/PC Cycle 2 Calibration: WFC Internal Delta
       Flats)

   3.9 Uplink Updated Ephemeris Tables, per MOSES 2871

   3.10 Complete FOS/BL 4058 (Mass Exchange Binaries (FOS 34) Augmentation:
       Cycle 2 Observation)

   3.11 Complete FOS/RD 5225 (Quasar Absorption Line Survey - Cycle 3 High
        - Part 3)

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

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-