HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1986

PERIOD COVERED:  0000Z (UTC) 10/17/97 - 0000Z (UTC) 10/20/97

Daily Status Report as of 293/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of 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.

   1.2 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 observations were
executed as scheduled, and no anomalies were noted.

   1.3 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.

   1.4 Completed Three Sets of STIS/MA1 7669 (Incidence Angle Correction
for Non-Concentric Slits-MAMA)

       The Space Telescope Imaging Spectrograph (MA1) was used to make
calibration images needed to find the incidence angle correction for
non-concentric slits-MAMA.  This test will provide incidence angle
corrections for MAMA observations using non-concentric slits.  This test
fills in missing calibrations from ground testing.  The observations were
completed as planned and no anomalies were reported.

   1.5 Completed NIC/2 7498 (NICMOS Imaging Survey of Distant Radio
Galaxies. Ellipticals at Z > 2 ?)

       The Near Infrared Camera (Camera Two) was used to make high
resolution and high signal-to-noise ratio imaging survey observations of
the radio galaxies USS0211-12, MRC0350-27, MRC0140-25 and MRC0316-25.  The
existence and photometric properties of massive elliptical galaxies at high
redshift provide a powerful probe of galaxy evolution.  The observations
were executed as scheduled, and no anomalies were noted.

   1.6 Completed Twelve 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.  Iterations two
through six were affected by the MCE2 reset mentioned in 2.3  Otherwise,
the observations were completed, and no further problems were reported.

   1.7 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.

   1.8 Completed Seven 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.

   1.9 Completed Twenty-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.

   1.10 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 Q0932+733.  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.

   1.11 Completed Four 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.

   1.12 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 BRI0952-01 by obtaining deep, high-resolution images
in the optical and near IR in order to see if it is gravitationally lensed
and could be used as a cosmological tool.  The observations were executed
as scheduled, and no anomalies were noted.

   1.13 Completed Four Sets of 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 stars HD222237,
HD192310, LHS2930 and HD33793.  These stars are known to be within 10
parsecs of the Sun.  The observations were executed as scheduled, and no
anomalies were noted.

   1.14 Completed NIC/1 7451 (Gravitational Lensing by Damped Ly-Alpha
Absorbers)

        The Near Infrared Camera (Camera One) was used to make observations
of radio galaxy 3C336 in order to study gravitational lensing in damped
Lyman-Alpha absorbers.  Damped Lyman-Alphas are thought to arise in the
disk of the progenitors of present-day spiral galaxies.  The observations
were completed as scheduled, and no problems were reported.

   1.15 Completed Two Sets of 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.

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

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
conduct a photometric monitoring test by making observations of standard
star P330E-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.  During this three-hour-fifteen-minute proposal,
the loss of lock mentioned in 2.1 occurred, affecting three exposures.
Otherwise, the observations were completed as planned, and no further
anomalies were reported.

   1.17 Completed NIC/1/2 7690 (NICMOS Pointed Super Flats)

       The Near Infrared Camera (Cameras One and Two) was used to make
super flat field calibration observations.  The observations will be used
to build high signal/noise ratio NICMOS flat fields for the different
filters.  The observations were executed as scheduled, and no anomalies
were noted.

   1.18 Completed Five 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.

   1.19 Completed WF/PC-2 7618 (WF/PC-2 Cycle 7 Photometric Monitor UV/OPT STD)

       The WF/PC-2 was used to make observations of the standard star
GRW+70D582 as part of a Cycle 7 photometric monitoring program.  This
ultraviolet spectrophotometric standard star was observed in a variety of
filters and cameras to monitor the photometric stability and quantum
efficiency of WF/PC-2 from the far-ultraviolet to near-infrared.  The
observations were completed as scheduled, and no problems were reported.

   1.20 Completed Twentyn 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.

   1.21 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-1892.  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.

   1.22 Completed WF/PC-2 5904 (Primordial Mass Segregation and Main
Sequence Age Spreads in Young LMC Stars)

       The WF/PC-2 was used to make observations of young cluster NGC-1711
which is located in the Large Magellanic Cloud in order to study the
primordial mass segregation and the main sequence age spread of its young
stars.  The observations were executed as scheduled, and no anomalies were
noted.

   1.23 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.

   1.24 Completed NIC/2 7457 (Warm Molecular Hydrogen in Cluster Cooling
Flow Nebulae)

       The Near Infrared Camera (Camera Two) was used to make observations
of the emission-line nebula Abell-2597 in order to study warm molecular
Hydrogen in a cluster cooling flow nebula.  The intracluster gas at the
centers of many clusters of galaxies can cool within a Hubble time,
prompting the suggestion that the ICM in these clusters cools and flows
towards the center, where it subsequently condenses.  The observations were
completed as planned, and no anomalies were reported.

   1.25 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 U-Gem and several other reference stars in order to measure its
distance from its parallax.  The distances to this dwarf novae are 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.

   1.26 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 : 23
                                        Successful : 23

                          Scheduled Reacquisitions : 23
                                        Successful : 23

       There was a loss of lock during profiled slews at 291/0819Z.  HSTAR
6206 was written.  The NICMOS proposal described in 1.16 was affected.

   2.2 FHST Updates:

                              Scheduled : 45
                             Successful : 45

   2.3 Operations Notes:

       The STIS MAMA2 was recovered at 290/1841Z via ROPs NS-14 and NS-12
after the MCE2 reset.  See 1.6 for the effects of the reset on STIS
operations.

       The SST interrupt log was dumped at 292/0600Z and at 293/0820Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH