HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2001

PERIOD COVERED:  0000Z (UTC) 11/07/97 - 0000Z (UTC) 11/010/97

Daily Status Report as of 314/0000Z

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 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 first iteration of
this proposal was affected by the STIS suspend described in the previous
report.  The remaining observations were executed as scheduled, and no
further anomalies were noted.

   1.3 Completed STIS/CCD 7711 (STIS CCD G750L fringing flats.)

       The Space Telescope Imaging Spectrograph (CCD) was to be used to
investigate and monitor the STIS CCD flat-field fringing in the G750L
grating at its nominal wavelength setting {7751A}.  WAVECALs were also
taken at the same GAIN and wavelength setting.  Typical S/N = 100 for each
integration, and gain = 4 on each.  This proposal was affected by the STIS
suspend described in the previous report.

   1.4 Completed Three Sets of NIC/2 7495 (Survey of Gravitational Lenses
as Cosmological Tools)

       The Near Infrared Camera (Camera Two) was used to make survey
observations of object SBS0909+52 by obtaining deep, high-resolution images
in the optical and near IR in order to see if it is  gravitational lenses
and could be used as a cosmological tool.  The observations were executed
as scheduled, and no anomalies were noted.

   1.5 Completed Twenty Two 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.

   1.6 Completed Five Sets of NIC/1/2/3/WF/PC-2/STIS/CCD 7419 (The Low Mass
Stellar Luminosity Function in Dwarf Spheroidal Galaxies)

       The Near Infrared Camera (Cameras One, Two, and Three), the WF/PC-2,
and the Space Telescope Imaging Spectrograph were used to study of the low
mass stellar luminocity function in the dwarf galaxy NGC-7078.  This class
of dSph satellite galaxies of the Milky Way provide the nearest, and best
studied, examples of dark-matter-dominated systems.  They have stellar
velocity dispersions well in excess of those consistent with their mass
being predominantly in a stellar mass function at all like that of the
solar neighborhood, or of the Galactic globular clusters.  The first two
iterations of this proposal was affected by the STIS suspend described in
the previous report.  The remaining observations were completed as planned,
and no further problems were reported.

   1.7 Completed FGS 7490 (Triton's Distorted Atmosphere)

       The Fine Guidance Sensors were used to make astrometric observations
of Neptune's largest moon Triton in order to study the moon's distorted
atmosphere.  Observations were also made on several reference stars.  The
asymmetry of a stellar-occultation light curve for Triton observed in 1995
can be readily explained if Triton's middle atmosphere is distorted from
spherical symmetry.  The observations were executed as scheduled, and no
anomalies were reported.

   1.8 Completed Two 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.

   1.9 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).  This proposal was
affected by the STIS suspend described in the previous report.

   1.10 Completed Two Sets of NIC/1/2/3 7421 (The Relation Between Quasar
Luminosity and Host Galaxy Mass)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
obtain ground-based, near-infrared imaging of nearby quasar PG2233+134
which has indicated a relation between the luminosity of the nucleus and
the luminous mass of its host galaxy.  The observations completed as
planned, with no reported problems.

   1.11 Completed FGS 7487 (Orbits of Pre-Main Sequence Binaries)

       The Fine Guidance Sensors were used to make astrometric observations
of the pre-main-sequence, binary star HV Tau in order to determine its
orbital elements.  This is important because there are still no low mass
young stars with reliably known masses.  The observations were executed as
scheduled, and no anomalies were noted.

   1.12 Completed WF/PC-2 6735 (Locating Disks, Accretion Flows, and
outflows in Close Binary T Tauri Stars)

       The WF/PC-2 was used to make observations of the binary system,
T-Tauri class star IS Tau in order to study the location of disk and
accretion flow.  Although the standard model for T-Tauri star formation is
based on single stars, we know that these T Tauri stars are in multiple
star systems having separations less than 100 AU.  The observations were
completed as scheduled, and no anomalies were noted.

   1.13 Completed WF/PC-2 7386 (A Snapshot Survey of Nova Shells)

       The WF/PC-2 was used to make observational images of the super nova
shell V3890-Sgr in order to detect and measure its expanding gaseous shell.
These observations will trace the distribution of hot and cool gas in the
nova shells, and show their degree of inhomogeneity on both large and small
scales.  The observations were completed as scheduled, and no problems were
noted.

   1.14 Completed STIS/CCD/MA1 7432 (Morphological and Spectral Evolution
of Galaxies)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was used to
make observations to study the morphological and spectral evolution of the
galaxy 3C332-2.  A library of ultraviolet images of normal galaxies at low
redshifts is essential to our understanding of the properties and evolution
of the high redshift universe.  The observations were completed as planned,
and no problems were reported.

   1.15 Completed Two Sets of 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.

   1.16 Completed NIC/2 7219 (Ultraluminous Infrared Galaxies)

       The near Infrared Camera (Camera Two) was used to make observations
of the ultraluminous infrared galaxy 09320+6134.  The luminous IRAS
galaxies are probably powered by nuclear starbursts and/or central AGNs;
many of these systems exhibit evidence of recent galactic interaction or
merging.  A dark calibration image was also taken.  The observations were
completed as planned, and no problems were reported.

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

       The Near-Infrared Camera (Cameras Two and Three) was used to make
observations of QSO/galaxies Q0029+073, Q0112+030 and PG0117+213.  The
images will also be used to connect the absorption line properties to these
galaxies' 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.

   1.18 Completed Seven 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.

   1.19 Completed Fourteen 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.

   1.20 Completed STIS/MA1 7345 (Origin and Physical Conditions in the
Local Lyman-Alpha Forest)

       The Space Telescope Imaging Spectrograph (MA1) was used to make
observations of VIIZW118 in order to study the origin and physical
conditions in the local Lyman-alpha forest.  A wavelength calibration image
was also taken.  The observations were executed as scheduled, and no
anomalies were noted.

   1.21 Completed Two Sets of WF/PC-2 6802 (Cosmology With the Medium Deep
Sky 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.

   1.22 Completed WF/PC-2 6659 (A Search For Superplanets Around Weak T-
Tauri Stars)

       The WF/PC-2 was used to make observations in the 1 micron band of
the T-Tauri class star V836-Tau in order to search for superplanets.  Weak
T-Tauri class stars are thought to have dissipated their circumstellar
disks recently, possibly by forming planetary systems.  The observations
were completed as planned, and no anomalies were reported.

   1.23 Completed NIC/1/2/3 7268 (Nuclear Brightness Profiles of Merger
Remnants; Do Mergers Form Ellipticals?)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the elliptical galaxy UGC-5814.  Many elliptical
galaxies might have formed from mergers of disk galaxies.  Numerical
simulations yield elliptical-like remnants and observed merger remnants
have R^1/4 surface brightness profiles.  However, while the global
properties of merger remnants and ellipticals are similar, it is unknown
whether this is true for their nuclear properties as well.  The
observations were executed as scheduled, and no anomalies were noted.

   1.24 Completed NIC/1/2/3 7607 (NICMOS Photometric Monitoring Test)

       The Near Infrared Cameras (Cameras One, Two, and Three) was used to
conduct a photometric monitoring test by making observations of standard
star P330-E-Cal.  The standard star (one solar analog and one white dwarf)
was observed with NIC1 & NIC2 at six different wavelengths spanning the
NICMOS wavelength range.  The observations were completed as planned, and
no anomalies were reported.

   1.25 Completed WF/PC-2/NIC/1/2/3 7414 (Imaging of a New Beta Pic-like
Circumstellar Dust Disk)

       The WF/PC-2 and the Near Infrared Camera (Cameras One, Two, and
Three) were used to obtain high-resolution mapping of the recently
discovered circumstellar disk around the B5V binary HD281159.  The
observations completed as scheduled, with no reported anomalies.

   1.26 Completed NIC/1/2 7321 (Spatially Resolved Multispectral
Investigation of Titan's Troposphere and Stratosphere)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of Saturn's moon Titan in order to study its atmosphere.
Saturn's moon Titan has a thick, hazy atmosphere obscuring a surface that
has only recently been observed in the near-infrared.  Despite observations
of surface albedo features, the nature of the surface remains hidden due to
our imprecise knowledge of the atmosphere.  The observations were executed
as scheduled, and no anomalies were noted.

   1.27 Completed WF/PC-2 7470 (A Snapshot Survey of Galactic Globular
Clusters)

       The WF/PC-2 was used to make snapshot survey observations of the
crowded center of the galactic globular cluster NGC-6934.  The resulting
color-magnitude diagram will include all stars down to about one magnitude
below the main-sequence turnoff.  The observations were completed as
scheduled, and no problems were reported.

   1.28 Completed NIC/2 7242 (Neptune Cloud Composition)

       The Near Infrared Camera (Camera Two) was used to make observations
of the planet Neptune in order to study its cloud composition.  To secure
identification of composition, precise spectrophotometry at the highest
possible spatial resolution is needed.  A dark calibration image was also
taken.  The observations were completed as planned, and no anomalies were
noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 27
                                        Successful : 27

                          Scheduled Reacquisitions : 16
                                        Successful : 16

   2.2 FHST Updates:

                              Scheduled : 60
                             Successful : 60

   2.3 Operations Notes:

       Proposals described in 1.2, 1.3, 1.6, and 1.9 were affected by STIS
being in suspend, which began at approximately 310/1725Z.

       STIS was recovered from suspend at 311/1641Z.  The STIS external
shutters were exercised at 311/1643Z.  Three MIE images were collected at
311/1758Z.  At 311/1809Z, the STIS CCD was transitioned to operate and the
STIS MAMAs were commanded to low voltage.

       Using ROP NS-3, the NSSC-1 status buffer was dumped and reset at
311/1906Z.

       As described in HSTAR 6237, the STIS MCE-1 reset outside the
boundaries of an SAA at 312/074326Z.  The MAMA1 high voltage was off at the
time of the reset.  STIS was recovered via ROP NS-14 at 312/1017Z, and the
STIS flight software error counter was reset at 312/1019Z.  SMS commanding
successfully recovered the MAMA, and no STIS observations were lost.

       The STIS interrupt log was dumped at 312/1452Z.

       The PRS ground master image was updated at 314/0624Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH