HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1993

PERIOD COVERED:  0000Z (UTC) 10/28/97 - 0000Z (UTC) 10/29/97

Daily Status Report as of 302/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of WF/PC-2 7621 (WF/PC-2 Cycle 7 Supplemental
Darks PT1/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
This set of calibrations is intended to obtain three dark frames every day
to provide data for monitoring and characterizing the evolution of hot
pixels.  The observations were executed as scheduled, and no anomalies were
noted.

   1.2 Completed STIS/CCD 7802 (Daily Darks to Update Acquisition Bad Pixel
Table)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
calibration observations to obtain daily darks to update the acquisition
bad pixel table.  These daily darks are intended to identify hot pixels for
update to the acquisition on-board FSW hot pixel table.  Daily hot pixel
lists can also be used for science data analysis.  The observations were
executed as scheduled, and no anomalies were noted.

   1.3 Completed Eight Sets of WF/PC-2 7786 (Pure Parallel Archive Survey -
Continuation)

       The WF/PC-2 was used to make observations as part of an archival
survey program in which the images were taken in parallel with the prime
science observations.  These WF/PC-2 parallel observations were obtained in
the ultraviolet in a search for interesting objects.  The observations were
completed as planned, and no problems were reported.

   1.4 Completed Two Sets of NIC/1/2 7222 (Search for the Main Sequence at
the Galactic Center)

       The Near Infrared Camera (Cameras One and Two) was used to search
for O and B stars for the various lines of evidence that indicate that the
galactic center has formed stars within the last 10-200 million years.
This will give a better age determination for the last epoch of star
formation.  The observations were completed without incident.

   1.5 Completed FGS 6876 (Parallax of RR-Lyrae)

       The FGSs were used to make astrometric observations of the variable
star RR-Lyrae.  RR Lyrae is the prototype of a class of stars that provide
a fundamental stepping stone for the astronomical distance scale.  Its
trigonometric parallax is presently known to be around 0.0042 +/- 0.0019
arcsec for a distance modulus of 6.86 +/- 0.6 mag. It is the only star of
this class with parallax range of HST.  The observations were completed as
planned, and no problems were reported.

   1.6 Completed NIC/1/2/3 7726 (NICMOS One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make a one orbit parallel calibration observations.  The observations were
executed as scheduled, and no anomalies were noted.

   1.7 Completed Six Sets of STIS/CCD 7782 (STIS Non-Scripted Parallel
Archive Proposal - Half Orbit)

        The Space Telescope Imaging Spectrograph (CCD) was used for a
non-scripted parallel archive proposal (one-half orbit).  The observations
were executed as scheduled, and no anomalies were noted.

   1.8 Completed NIC/2 7213 (High Resolution Imaging of 'Warm'
Hyperluminous Infrared Galaxies)

       The Near Infrared Camera (Camera Two) was used to make high
resolution infrared images of the "warm" hyperluminous galaxy PG1700+518 in
order to expand our knowledge of their complicated relationship with the
QSO phenomenon.  The observations were executed as scheduled, and no
anomalies were noted.

   1.9 Completed NIC/1/2 7180 (Surface and Atmospheric Features on Titan)

       The Near Infrared Camera (Cameras One and Two) was used to make high
resolution infrared observations of the surface and atmospheric features on
Saturn's moon Titan.  The primary objective is to measure the wavelength
dependence of discrete surface features to investigate possible
compositional heterogeneity of Titan's surface.  The observations were
executed as scheduled, and no anomalies were noted.

   1.10 Completed Four Sets of FGS 7680 (FGS3 and FGS1R TRANS Mode Plate
Scale Calibration)

       The Fine Guidance Sensors were used to make astrometric observations
of the binary star UV-Ceti in order to perform a FGS #3 and FGS #1R TRANS
Mode plate scale calibration.  Several GO programs have revealed an effect
where the measured separation of the components of a binary system is
sensitive to its orientation relative to the FGS interferometer axis, i.e.
HST roll.  The calibration observations were completed as planned, and no
problems were reported.

   1.11 Completed Four Sets of NIC/1/2/3 7729 (NICMOS Short One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
obtain "JHK" imaging of sky regions while another instrument was prime.
These observations were  part of the short NICMOS one-orbit parallel
program.  The observations were executed as scheduled, and no anomalies
were noted.

   1.12 Completed NIC/2 7420 (A Near-Infrared Search for Very Low Mass
Companions to Stars Within 10 Parsecs of the Sun)

       The Near Infrared Camera (Camera Two) was used to make searching
observations for very low mass companions to variable star LHS1375.  This
star is known to be within 10 parsecs of the Sun.  The observations were
executed as scheduled, and no anomalies were noted.

   1.13 Completed WF/PC-2 7431 (Snapshot Survey of Microlensed Source Stars)

       The WF/PC-2 was used to make snapshot survey images of microlensed
source star MACHO-94-B.  Gravitational microlensing surveys have revealed
an excess of lensing events over theoretical predictions toward both the
Large Magellanic Cloud and the Galactic bulge.  The observations were
completed as planned, and no anomalies were reported.

   1.14 Completed WF/PC-2/NIC/3 7382 (The Star-Formation History of the
Large Magellanic Cloud)

       The WF/PC-2 and the Near Infrared Camera (Camera Three) were used to
make observations of the disk of the Large Magellanic Cloud.  These data
will enable us to quantitativly study the intermediate to low-mass stellar
populations and the star-formation history of the LMC.  The observations
were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 16
                                        Successful : 15

       As described in HSTAR 6225, there was an acquisition failure at
302/042311Z due to the scan step limit being exceeded.  NICMOS proposal
6225, which occurs in the interval of tomorrow's report, was affected.

                          Scheduled Reacquisitions : 3
                                        Successful : 3

   2.2 FHST Updates:

                              Scheduled : 24
                             Successful : 24

   2.3 Operations Notes:

       There were no significant operational problems encountered.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH