HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1973

PERIOD COVERED:  0000Z (UTC) 09/29/97 - 0000Z (UTC) 09/30/97

Daily Status Report as of 273/0000Z

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 7659 (Daily Darks to Update Acquisition Bad Pixel
Table)

       The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad 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 STIS/CCD 7634 (CCD Flat Field and Cosmetic Defect Fraction)

       The Space Telescope Imaging Spectrograph (CCD) was used to
investigate and monitor the STIS CCD imaging flat-field stability and
cosmetic defects over monthly periods thoughtout Cycle 7.  The observations
were completed as planned, with no anomalies.

   1.4 Completed NIC/2 7228 (Imaging and Polarimetry of YSO'S)

       The Near Infrared Camera (Camera Two) was used to investigate the
young stellar object (YSO) HH30 with coronagraphic imaging, polarimetry,
and line imaging.  The observations were completed as planned, and no
problems were reported.

   1.5 Completed Four Sets of WF/PC-2 7620 (WF/PC-2 Cycle 7 Standard Darks)

       The WF/PC-2 was used to make a series of Cycle 7 standard dark
calibration images.  This dark calibration program obtains dark frames
every week in order to provide data for the ongoing calibration of the CCD
dark current rate, and to monitor and characterize the evolution of hot
pixels.  The observations were executed as scheduled, and no anomalies were
noted.

   1.6 Completed STIS/CCD 7648 (G230LB and G230MB Wavelength Calibrations)

       The Space Telescope Imaging Spectrograph (CCD) was used to obtain
wavelength dispersion solutions for regions bluer than 2000 A.  Only
ground-based calibrations are currently available representing wavelength
coverage longer than 2000 A.  Dispersion solutions for wavelengths on the
blue end of the spectral range of the G230LB and G230MB gratings will be
obtained.  The observations completed as planned with no problems.

   1.7 Completed Two Sets of NIC/2 7330 (The Fueling of Active Nucleii: A
NICMOS Snapshot Survey)

       The Near Infrared Camera (Camera Two) was used to probe the dark
matter distribution of NGC578 far from the center by observing intervening
absorption from the MgII doublet (lambda 2800) in the spectrum of one
background QSO located in a geometrically optimal position.  HST
observations are required because this feature is in a wavelength range not
accessible from the ground, and the QSO magnitudes and expected strength of
absorption make IUE observations unfeasible.  The proposal completed as
expected with no anomalies.

   1.8 Completed WF/PC-2 6460 (Where are the Dozens of Predicted
Cataclysmic Variables in Globular Clusters?)

       The WF/PC-2 was used to make observations of the globular cluster
NGC-6093 in order to search for predicted cataclysmic variables.  WF/PC-2
imaging of globular cluster cores provides us with a unique opportunity to
detect erupting cataclysmic variables because they should be relatively
common in the core region.  The observations were executed as scheduled,
and no anomalies were noted.

   1.9 Completed 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.

   1.10 Completed Three Sets of NIC/1/2/3 7726 (NICMOS One Orbit Parallel)

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

   1.11 Completed STIS/CCD 7783 (STIS Parallel Science)

        The Space Telescope Imaging Spectrograph (CCD) was used to make
observations taken in parallel with the prime science.  The observations
were completed, and no problems were reported.

   1.12 Completed NIC/2 7495 (Survey of Gravitational Lenses as
Cosmological Tools)

       The Near Infrared Camera (Camera Two) was used to make survey
observations of object CLASS1608 by obtaining deep, high-resolution images
in the optical and near IR in order to see if they are gravitational lenses
and could be used as a cosmological tool.  The observations were executed
as scheduled, and no anomalies were noted.

   1.13 Completed STIS/MA2 7720 (MAMA Full Field Sensitivity Monitor and
PSF Check)

       The Space Telescope Imaging Spectrograph (MA2) was used to monitor
the sensitivity of the FUV-MAMA and NUV-MAMA over the full field and to
monitor the PSF.  The observations completed as planned, with no reported
problems.

   1.14 Completed Three 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.

   1.15 Completed Two Sets of WF/PC-2 7625 (WF/PC-2 Cycle 7 Earth Flats)

       The WF/PC-2 was used to make a series of Earth flat calibration
images.  These flat fields will allow mapping of the OTA illumination
pattern and will be used in conjunction with previous internal and external
flats to generate new pipeline superflats.  The observations were completed
as planned, and no anomalies were reported.

   1.16 Completed Four Sets of STIS/MA1 7604 (Cycle 7 MAMA Dark Measurements)

       The Space Telescope Imaging Spectrograph (MA1) was used to make MAMA
dark measurements.  These darks will be used in later image reductions and
also trended over the instrument's life time as an indicator of the
detector's degradation or damage.  The observations were completed as
scheduled, and no problems were reported.

   1.17 Completed WF/PC-2 6864 (Circumstellar Material Around Symbiotic Stars)

       The WF/PC-2 was used to observe a bright nearby symbiotic OM-CETI.
Observations are made in emission lines H Beta, NII SII and a continuum of
F547w to look for dust reflection.  Higher signal to noise images where
better PSF information is available are also taken in F675W, which includes
several strong nebular emission lines.  The observations completed as
scheduled with no problems.

   1.18 Completed NIC/2 7729 (NICMOS Short One Orbit Parallel)

       The Near Infrared Camera (Camera Two) 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.

   1.19 Completed FGS 7682 (FGS-3 Blue Transfer Function Reference Search
Calibration)

       The Fine Guidance Sensor-3 was used to make observations of
candidate star HD65896 in order to perform the blue transfer function
reference search calibration.  This proposal will measure the transfer
function of a number of blue candidate stars in order to verify a single
star which can be used for the blue calibration of the Trans Mode.  The
observations were exected as scheduled, and no anomalies were reported.

   1.20 Completed Two Sets of STIS/CCD 7781 (STIS Non-Scripted Parallel
Archive Proposal - Full Orbit)

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

   1.21 Completed WF/PC-2 6559 (An Imaging Study of Asteroids)

       The WF/PC-2 was used to make multi-color observations of the main
belt asteroid 8-Flora.  This asteroid  reached perigee during Cycle 6.  The
images will be searched for companions.  The observations were executed as
scheduled, and no anomalies were noted.

   1.22 Completed FGS 6538 (The Distances to Dwarf Novae, and the
Calibration of the Technique of Infrared Spectroscopic Parallax)

       The FGSs were used to make astrometric observations of the Dwarf
Novae SS-Aur-Ref and several other reference stars in order to measure its
distance from its parallax.  The distances to this dwarf novae is poorly
known.  This deficiency severely impacts our ability to quantify the
energetics of the various processes taking place in dwarf novae systems.
The observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 7
                                        Successful : 7

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 18
                             Successful : 18

   2.3 Operations Notes:

       HSTAR 6176 was written to document a gyro 6 saturation error which
occurred at 272/1715Z.  The parameter returned to the normal operating
range within 12 seconds.

       The SSR interrupt log was dumped at 273/0938Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH