HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1962

PERIOD COVERED:  0000Z (UTC) 09/12/97 - 0000Z (UTC) 09/15/97

Daily Status Report as of 258/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Seven 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 Three Sets of 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 Three 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.

   1.4 Completed STIS/CCD 7783 (STIS Parallel Observations)

       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.

   1.5 Completed Six 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.

   1.6 Completed 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 NGC-1530, far from the center, by observing
intervening absorption from the Mg II 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.

   1.7 Completed WF/PC-2 6502 (Evolution and Excitation of Bipolar Nebulae)

       The WF/PC-2 was used to make observations of the bipolar nebula
NGC-6537 in order to study its evolution and excitation.  Understanding the
physics of bipolar nebulae is a key means of probing the mass loss history
of stars from their youngest to their most evolved stages.  The
observations were completed as scheduled, and no anomalies were reported.

   1.8 Completed Seven 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.

   1.9 Completed WF/PC-2 6625 (The Second-Parameter Effect and the
Formation History of the Milky Way Galaxy)

       The WF/PC-2 was used to make observations of globular cluster
NGC-6626 in order to study the second-parameter effect and formation
history of the Milky Way Galaxy.  Observations were made of this galactic
globular cluster in order to establish an unbiased correlation between the
morphology of the horizontal branch, the age of the cluster for a fixed
metallicity.  The observations were completed as planned, and no anomalies
were reported.

   1.10 Completed WF/PC-2 7792 (HST Support for Mars Global Surveyor)

       The WF/PC-2 was used to make imaging observations of the planet Mars
in support of the Mars Global Surveyor Mission during the aero-braking by
monitoring dust opacity on the planet's atmosphere.  The observations were
executed as scheduled, and no anomalies were noted.

   1.11 Completed WF/PC-2 6431 (Determination of the Extragalactric
Distance Scale)

       The WF/PC-2 was used to make observations of the galaxy NGC-1326 to
be used in measuring the periods of Cepheid variable stars within this
galaxy.  This will allow for a more accurate estimate of the distances to
these galaxies through the period-luminosity relation for the Cepheid
stars.  The observations were executed as scheduled, and no anomalies were
noted.

   1.12 Completed 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.

   1.13 Completed Two Sets of NIC/2 7327 (Elliptical Galaxy Evolution at
High Redshift: IR Imaging of 60 Distant Clusters)

       The Near Infrared Camera (Camera Two) was used to make infrared
observations of high redshifted elliptical galaxies in galactic clusters
CL1335+463 and CL1227+463.  By measuring the structural properties of high
redshift cluster elliptical galaxies, it is hoped to resolve the
controversy regarding the age and formation history of bright cluster
ellipticals.  The observations were executed as scheduled, and no anomalies
were noted.

   1.14 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.

   1.15 Completed NIC/2/3 7791 (NICMOS Focus Sweep at 2 FOM positions)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations of the cluster NGC-3603 as part of a NICMOS focus sweep.  The
main objectives of this proposal are: a} to cover sufficient region of PAM
focus space to ensure the optimal locations are included, and  b} measure
vignetting and image quality at different FOM positions.  The observations
were executed as schedule, and no anomalies were noted.

   1.16 Completed FGS 7485 (Dynamical Masses for the Stars in the Pre
-Main- Sequence Spectroscopic Binary 045251+3016)

       The Fine Guidance Sensors were used to make astrometric observations
of the pre-main-sequence, spectroscopic, binary star STAR-04560 in order to
obtain its dynamic mass.  An excellent single-lined spectroscopic orbit was
already completed, which provides all of the essential orbital elements
except inclination angle and mass ratio.  The observations were executed as
scheduled, and no anomalies were noted.

   1.17 Completed Two Sets of NIC/1/2/3 7328 (High Resolution IR Imaging
Survey of the Centers of the Nearest Active Galaxies)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make high resolution infrared observations of the nearest active Markarian
galaxy UM146 in order to study its inner nuclear region.  Observing in the
near-IR minimizes the dust obstruction and maximizes sensitivity to the old
stellar population which dominates the mass.  The  observations were
executed as scheduled, and no anomalies were noted.

   1.18 Completed NIC/2 7331 (Near-IR Properties of the Bulges of Spiral
Galaxies)

       The Near Infrared Camera (Camera Two) was used to make infrared
observations of the bulge in spiral galaxy NGC-2985.  Near-IR data at HST
resolution are essential for correcting for the effect of dust and will
enable us to derive robust nuclear properties for the sample.  The
observations were executed as scheduled, and no anomalies were noted.

   1.19 Completed WF/PC-2 FOC/96 6820 (A Very Deep Luminosity Function for
the Galactic Bulge)

       The WF/PC-2 was used to make very deep imaging observations  the
nuclear bulge in galaxy NGC-6558 in order to study its luminosity function.
This is the only old, metal rich stellar population that we can study down
to M-I~eq +12, unaffected by the dynamical processes that are known to
occur in globular clusters.  The observations were completed as scheduled,
and no problems were reported.

   1.20 Completed Two Sets of NIC/1/2 7692 (Polarizers Calibration)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the standard star CHA-DC-F7 as part of a polarization
calibration.  The polarization and position angle of polarization are
measured {at the same orientation} for two standard polarized point sources
and one extended polarized source of known J and H band polarization.  The
observations were completed as scheduled, and no problems were noted.

   1.21 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.

   1.22 Completed STIS/CCD/MA2 7089 (STIS MAMA Coronograph Occulting Bar
Scattered Light)

       The Space Telescope Imaging Spectrograph (CCD and MA2) was used to
make observations of star GD50-2 in order to study the scattering of light
by the coronograph occultation bar for far-ultraviolet and near-ultraviolet
MAMA observations.  The observations were completed as planned, and no
anomalies were reported.

   1.23 Completed WF/PC-2 6802 (Cosmology With the Medium Deep Survey)

       The WF/PC-2 was used to make observations taken in parallel with the
prime science observations as part of the Medium Deep Sky Survey.  The
observations were executed as scheduled, and no problems were reported.

   1.24 Completed NIC/1/2/3 7364 (Compact Young Clusters and the r^-2 Cusp
near the Galactic Center)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
make observations of young clusters in our galactic bulge.  With these data
it is hoped that the slopes and lower mass cutoffs for the initial mass
functions in these stellar groups will be determined by comparing the
observed stellar surface number density and the distribution in
color-magnitude diagrams to the current models.  The observations were
completed as planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 23
                                        Successful : 23

                          Scheduled Reacquisitions : 26
                                        Successful : 26

   2.2 FHST Updates:

                              Scheduled : 24
                             Successful : 24

   2.3 Operations Notes:

       HST operations experienced a quiet weekend.

       The SSR interrupt log was dumped at 255/1946Z and 257/1706Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH