HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2022

PERIOD COVERED:  0000Z (UTC) 12/11/97 - 0000Z (UTC) 12/12/97

Daily Status Report as of 346/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 5901 (Imaging of Gravitational Microlens Source
Systems and Their Underlying Stellar Backgrounds)

       The WF/PC-2 was used to make observations of the gravitation
microlens source system LMC-1517-7 which is located in the Large Magellanic
Cloud.  This is to study the underlying stellar background.  The deep
images of the sources will provide first epoch images for comparison with
later images to resolve the proper motion of the lensing object, if it is
luminous.  The observations were executed as scheduled, and no anomalies
were noted.

   1.2 Completed Five Sets of NIC/2/3 7812 (NICMOS Modified Short One Orbit
Parallel)

       The Near Infrared Camera (Cameras Two and Three) was used to obtain
"JH" imaging of sky regions when another instrument is prime.  Two dither
positions are obtained for each filter.  The third and fourth iterations of
this proposal were affected by the acquisition failure mentioned in 2.1.
Otherwise, the observations were completed as scheduled, and no further
anomalies were reported.

   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 second
iteration of this proposal was affected by the acquisition failure
mentioned in 2.1  Otherwise, the observations were executed as scheduled,
and no further anomalies were noted.


   1.4 Completed 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 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.

   1.5 Completed 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 near-infrared imaging of nearby quasar PG0026+129 which has
indicated a relation between the luminosity of the nucleus and the luminous
mass of the host galaxy.  The observations completed as planned, with no
reported problems.

   1.6 Completed WF/PC-2 7623 (WF/PC-2 Cycle 7 Internal Flats)

       The WF/PC-2 was used to make a set of internal Cycle 7 calibration
flats which are designed to monitor the pixel to pixel flat field response
and the visflat lamp degradation, as well as detect any possible changes
due to contamination.  The calibration observations were completed as
planned, and no problems were reported.

   1.7 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/quasar Q0049-2820.  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.

   1.8 Completed  WF/PC-2 6745 (Fundamental Plane, Morphology-Density
Relation, and Lensing in the z=0.58 Arc Cluster CL2053)

       The WF/PC-2 was to be used to make observations of the galactic
cluster Gal-Clus-2053 in order to study its fundamental plane structure,
its morphology-density relation, and its lensing.  The distribution of
starburst galaxies and/or mergers as a function of radius will be of
particular interest.  The mass distribution will be determined from the
distortion of background galaxies by weak lensing.  The acquisition failure
mentioned in 2.1 occurred at the beginning of this proposal.  The take data
flag remained down.  There were no other reported problems.

   1.9 Completed Two 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 first iteration
of this proposal was affected by the acquisition failure mentioned in 2.1.
Otherwise, the observations were completed, and no further problems were
reported.

   1.10 Completed NIC/2 7219 (Ultraluminous Infrared Galaxies)

       The Near Infrared Camera (Camera Two) was used to make observations
of the ultraluminous infrared galaxy 3C48.  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.  The
observations were completed as planned, and no problems were reported.

   1.11 Completed Two 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.

   1.12 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.

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

       The WF/PC-2 was used to make observations of the galaxy NGC-3319 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.

   1.14 Completed WF/PC-2/STIS/CCD/NIC/1/2 7307 (The Formation and
Evolution of Rich Star Clusters in the LMC)

       The WF/PC-2, the Space Telescope Imaging Spectrograph (CCD), and the
Near Infrared Camera (Cameras One and Two) were used to make observations
of the rich star cluster NGC-1818 which is located within the Large
Magellanic Cloud in order to study its formation and evolution.  These
observations will help us understand the origin and evolution of rich star
clusters in our own Galaxy.  The guide star acquisition for this proposal
defaulted to fine lock on FGS-1 only, possibly affecting results.
Otherwise, the observations were complete as scheduled, and no further
anomalies were reported.

   1.15 Completed STIS/MA1 7434 (The Supernova Intensive Study)

       The Space Telescope Imaging Spectrograph (MA1) was used to continue
the long-term project on supernovae by observing SN1987A.  HST can make
unique contributions to understanding supernovae, as has been demonstrated
through this program in past years, and now STIS and NICMOS offer new
opportunities for deepening this investigation.  The aim of the proposal is
to explore the UV emission from supernovae, exploit the spatial resolution
of HST and press the late-time observations of supernovae into uncharted
territory.  The observations were completed as planned, and no anomalies
were reported.

   1.16 Completed Two Sets of STIS/CCD 7646 (STIS CCD Scattered Light Near
Earth Limb)

       The Space Telescope Imaging Spectrograph (CCD) was used to study
scattered light near the Earth's limb.  This program will determine the
effect of scattered light from the bright limb of the Earth on the
background of STIS CCD images.  The observations were executed as
scheduled, and no anomalies were noted.

   1.17 Completed WF/PC-2 6963 (OTA Calibration at Low Limb Angle)

       The WF/PC-2 was used to make calibration observations of the OTA at
low limb angles.  Earth background at low limb angle is detected in two
filters in all four chips to determine received intensity over the range
15.5 to 20 degrees.  The observations were completed as planned, and no
anomalies were reported.

   1.18 Completed 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.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5

       Yesterday's report failed to note an acquisition failure which
occurred at 345/1056Z.  HSTAR 6266 was written.  The proposals described in
1.2, 1.3, 1.8, and 1.9 were affected.

       At 345/1754Z, the guide star acquisition defaulted to fine lock on
Fgs-2 only.  HSTAR 6267 was written.  The proposal detailed in 1.14 may
have been affected.

                          Scheduled Reacquisitions : 4
                                        Successful : 4

   2.2 FHST Updates:

                              Scheduled : 22
                             Successful : 22

   2.3 Operations Notes:

       Using ROPs NS-12 and NS-14, the STIS MCE-2 dumps were performed at
345/1913Z.  The MAMA was recovered via the SMS.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH