HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1984

PERIOD COVERED:  0000Z (UTC) 10/15/97 - 0000Z (UTC) 10/16/97

Daily Status Report as of 289/0000Z

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 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 HD304636.  This
star is known to be within 10 parsecs of the Sun.  The observations were
executed as scheduled, and no anomalies were noted.

   1.3 Completed STIS/CCD/MA1 7392 (Raman Scattering and X-Ray Ionization
in LMC X-4)

       The Space Telescope Imaging Spectrograph (CCD/MA1) was used to make
observations of LMCX-4 (an X-ray pulsar with O star companion) in order to
study its Raman scattering and X-ray ionization.  The aim is to detect
Raman scattered emission lines in high-resolution far-ultraviolet spectra
and to study their orbital modulation.  The observations were completed as
planned, and no anomalies were reported.

   1.4 Completed Three 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.

   1.5 Completed WF/PC-2 6519 (Parallel High Resolution Imaging of Defuse
Objects in the Magellanic Clouds)

       The WF/PC-2 was used to make high resolution observations of a
defuse object located in the Large Magellanic Cloud. These data will allow
the detailed study of the morphology and spatial relationship of various
inter-stellar processes. These observations were taken in parallel with the
prime science observations.  The observations were executed as scheduled,
and no anomalies were noted.

   1.6 Completed Three Sets of NIC/2 7795 (NICMOS MULTIACCUM Dark
Characterization 1/8)

       The Near Infrared Camera (Camera Two) was used to obtain on-orbit
darks for the MULTIACCUM predefined sequences requested by GOs, after day
233 of 1997.  The observations were executed as scheduled, and no anomalies
were noted.
Dark

   1.7 Completed FGS 6768 (Continuation of an Astrometric Search For
Planetary Companions to Proxima Cen)

       The FGS were used to make astrometric observations of the star
Proxima-Cen and several other reference stars.  Excluding our Sun, this is
the next closest star to the planet Earth at just over 4 light years away.
These data will be combined with data from pervious cycles and analysis
will be done looking for any indications of a planetary companion.  The
observations were executed as scheduled, and no anomalies were noted.

   1.8 Completed NIC/2 7795 (NICMOS MULTIACCUM Dark Characterization 1/8)

       The Near Infrared Camera (Camera Two) was used to obtain on-orbit
darks for the MULTIACCUM predefined sequences requested by GOs, after day
233 of 1997.  The observations were executed as scheduled, and no anomalies
were noted.
Dark

   1.9 Completed WF/PC-2 6967 (Blue Continuum Snapshots of 3CR Radio -
Continued Galaxies)

       The WF/PC-2 was used to make observations of the radio galaxy
3C390.0.  Radio galaxies are an important class of extragalactic objects:
they represent one of the most energetic astrophysical phenomena; they may
be used as probes of their environments; and they are unique probes of the
early Universe.  The observations were completed as planned, and no
problems were reported.

   1.10 Completed STIS/CCD/MA2 7433 (UV Spectral Dating of Galaxies)

       The Space Telescope Imaging Spectrograph (CCD/MA2) was used to make
ultraviolet spectrographic observations of HD107113 to calculate a highly
accurate library of UV stellar spectra that can be used to estimate the age
and metallicity of galaxies of intermediate age {between 1 and 8 Gyrs}.
The critical step in this effort is to test the model spectra against
high-quality UV spectra of real stars.  A wave length calibration image was
also taken.  The observations were executed as scheduled, and no anomalies
were noted.

   1.11 Completed NIC/1/2/3 7798 (NICMOS MULTIACCUM Dark Characterization
of Pedestal F)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make to make MULTIACCUM dark characterization calibration observations
using Pedestal F.  The purpose of this proposal is to obtain on-orbit darks
for the MULTIACCUM predefined sequences requested by GOs, after day 233 of
1997.  The observations were executed as scheduled, and no anomalies were
noted.

   1.12 Completed Four 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.  Each iteration of
this proposal was affected by the losses of lock detailed in 2.3.
Otherwise, the observations were completed as planned, and no further
problems were reported.

   1.13 Completed Two Sets of NIC/1/2/3 7425 (Gravitational Lensing
Enhanced NICMOS Imagery of a Young, Rapidly Evolving Faint Blue Galaxy)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the galactic cluster GAL-CLUS-0.  Previous WF/PC-2
observations of this gravitational lens system show a faint blue galaxy
that is multiple-imaged by a foreground rich galaxy cluster.  It displays a
spectacular ring-like morphology with several bright knots and a dark
center that strongly suggests vigorous star formation and rapid evolution.
Both iterations of this proposal were affected by the losses of lock
detailed in 2.2.  Otherwise, the observations were completed as planned,
and no further problems were reported.

   1.14 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.

   1.15 Completed NIC/2/3 7424 (NICMOS Imaging of QSO Absorption-- Selected
Galaxies at z > 1)

       The Near-Infrared Camera (Camera Two and Three) was used to make
observations of QSO/galaxy PKS0424-13.  The images will also be used to
connect the absorption line properties to the galaxy morphological
properties, inclination angles, and orientations in order to continue to
explore the connection between the absorbing gas and the galaxies.  The
observations were completed as scheduled, and no anomalies were reported.

   1.16 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.

   1.17 Completed Three Sets of 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.

   1.18 Completed NIC/1/2/3 7158 (NICMOS Detector Linearity and Saturation)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
test the detector linearity and saturation of the camera.  Some evidence
has been found in SMOV and ERO data of changes in saturation level for
NICMOS detectors since SLTV.  This SMOV proposal aims to investigate this
by obtaining linearity curves and saturation levels for all three NICMOS
detectors, using a technique which avoids errors due to persistence.  The
observations were completed as planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 9
                                        Successful : 9
                          Scheduled Reacquisitions : 5
                                        Successful : 5

       There were guide star losses of lock at 288/110119Z, 288/110542Z,
288/111047Z (covered in HSTAR 6200), approximately 288/123500Z (covered by
HSTAR 6201), 288/142925Z, 288/143533Z, and 288/144054Z (covered by HSTAR
6202), as well as at least two losses of lock during the period 288/154600Z
- 288/155223Z (covered by HSTAR 6203).  Proposals described in 1.12 and
1.13 were affected.

       Preliminary analysis of these losses of lock indicates that FGS-2
had difficulty acquiring the targeted guide star, resulting in false locks
on the edge of the field of view.  This is a problem seen previously with
this FGS.  The targeted star was the same in all cases.  Star quality is
also suspect.

   2.2 FHST Updates:

                              Scheduled : 15
                             Successful : 15

   2.3 Operations Notes:

       The SSR interrupt log was dumped at 289/0345Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH