HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2250

PERIOD COVERED:  0000Z (UTC) 11/12/98 - 0000Z (UTC) 11/13/98

Daily Status Report as of 317/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Three Sets of WF/PC-2 7713 (WF/P-2 Cycle 7 Supplemental Darks
pt3/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
This dark calibration program obtains three dark frames every day to
provide data for monitoring and characterizing the evolution of hot pixels.
The observations were completed as planned, and no anomalies were noted.

1.2 Completed Two Sets of STIS/CCD 7948 (CCD Dark and Bias Monitor -- Cont.
to Dec. 98)

       The Space Telescope Imaging Spectrograph (CCD) was used to measure
CCD dark current and bias rates for the two supported amplifier settings
{GAIN=1 and GAIN=4} in order to gather data for making superdarks and
superbiases.  The data will be used to track the growth of hot pixels on
the CCD in general and within the various target acquisition apertures
specifically.  The observations were executed as scheduled, and no
anomalies were noted.

1.3 Completed Seven Sets of NIC/1/2/3 7963 (Darks: Warming Up)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
monitor the detector dark current during the interval between the end of
science observations and the exhaustion of cryogen and subsequent warming
of the dewar to > 100K.  As described in HSTAR 6768 and yesterday's report,
the acquisition for the third iteration of this proposal defaulted to fine
lock backup on one FGS only.  Otherwise, the observations were completed as
planned, and no further anomalies were noted.

1.4 Completed Two Sets of NIC/1/2 7243 (High Resolution Imaging of Io)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of Jupiter's moon Io.  The technique of super-resolution
imaging will be used to obtain near-IR images of Io with sufficient
resolution to map the surface on this volcanically active satellite of
Jupiter.  Observations were also made of standard star SAO146868.  The
observations were executed as scheduled, and no anomalies were noted.

1.5 Completed WF/PC-2/STIS/CCD/NIC/1/2/3 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, Two and Three) were used to make
observations of the rich star clusters which are located within the Large
Magellanic Cloud in order to study their formation and evolution.  These
observations will help us understand the origin and evolution of rich star
clusters in our own galaxy.  The observations were completed as scheduled,
and no anomalies were reported.

1.6 Completed STIS/CCD/MA1 7437 (Understanding High-Redshift and Starburst
Galaxies: A UV Spectroscopic Survey of O-Stars in the SMC)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was  used to
make ultraviolet spectrographic observations of galaxy NGC-1868-CE.  The
data from this survey, of importance in many areas of astrophysics, will
immediately be made public as no proprietary period is requested.  A
wavelength calibration image was also taken.  As described in HSTAR 6768
and yesterday's report, the acquisition for this proposal defaulted to fine
lock backup on one FGS only.  Otherwise, the observations were executed as
scheduled, and no further anomalies were noted.

1.7 Completed WF/PC-2 7909 (POMS Test Proposal: WF II Parallel Archive
Proposal)

       The WF/PC-2 was used to make parallel observations as part of the
POMS test proposal.  This test proposal is designed to simulate scientific
plans.  As described in HSTAR 6768 and yesterday's report, the acquisition
for this proposal defaulted to fine lock backup on one FGS only.
Otherwise, the observations were completed as planned, and no further
problems were reported.

1.8 Completed Four Sets of NIC/1/2/3 7961 (Flats: Warming Up)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
monitor the flat fields during the interval between the end of science
observations and the exhaustion of cryogen and subsequent warming of the
dewar to > 100K.  These flats will provide a monitor for particulate
comtamination and detector lateral position {from the coronagraphic spot
and FDA vignetting}.  As described in HSTAR 6768 and yesterday's report,
the acquisition for the first two iterations of this proposal defaulted to
fine lock backup on one FGS only.  Otherwise, the proposal completed with
no further reported problems.

1.9 Completed WF/PC-2 8059 (POMS Test Proposal: WF-2 Targeted Parallel
Archive Proposal)

       The WF/PC-2 was used to make observations in parallel with the prime
science observations.  The parallel opportunities available with WF/PC-2 in
the neighborhood of bright galaxies are treated in a slightly different way
from the normal pure parallels.  Local group galaxies offer the opportunity
for a closer look at young stellar populations.  As described in HSTAR 6768
and yesterday's report, the acquisition for this proposal defaulted to fine
lock backup on one FGS only.  Otherwise, the observations were completed as
planned, and no further anomalies were reported.

1.10 Completed WF/PC-2 8061 (POMS Test Proposal: WF-II Backup Parallel
Archive Proposal)

       This is a POMS test proposal designed to simulate scientific plans.
The proposal was executed as planned, and no anomalies were reported.

1.11 Completed WF/PC-2 6458 (Imaging of QSO Host Galaxies at Z >2)

       The WF/PC-2 was used to make observations of the QSO/host galaxy
0225-014.  QSOs of redshift larger than 2 have been resolved with
~arcsecond resolution on 4m-class ground-based telescopes. Both line and
continuum flux have been detected over a few arcseconds, but the nature of
the extended emission, and its relation to the nuclear energy source is
unclear.  As described in HSTAR 6768 and yesterday's report, the
acquisition for this proposal defaulted to fine lock backup on one FGS
only.  Otherwise, the observations were executed as scheduled, and no
further anomalies were noted.

1.12 Completed Seven Sets of STIS/CCD 8084 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
non-scripted parallel high galactic latitude observations as part of POMS
test proposal.  The observations were executed as scheduled, and no
anomalies were noted.

1.13 Completed Two Sets of NIC/2/3 8063 (NICMOS Pure Parallel Sponge - Backup)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations taken in parallel with the prime science observations.  This
proposal is PRE-the new FOM default.  The observations were executed as
scheduled, and no anomalies were noted.

1.14 Completed NIC/2 7233 (Dust Disks Around Main Sequence Stars)

       The Near Infrared Camera (Camera Two) was used to make observations
of the dust disk around main sequence stars.  The observations were made
with the coronagraph to minimize the effects of glare from the bright
central star.  A dark calibration image was also taken.  The observations
were completed as scheduled, and no anomalies were reported.

1.15 Completed NIC/2 7226 (Search for Massive Jupiters)

       The Near Infrared Camera (Camera Two) was used to make a corographic
search for massive planets around nearby, young main sequence stars.
Because of the extreme youth of these objects, any low-mass brown dwarf and
planetary companions will still be in a higher luminosity phase and thus
easily detectable.  A dark calibration image was also taken.  The
observations were executed as scheduled, and no anomalies were noted.

1.16 Completed NIC/1/2/3 7227 (A Search for Low Mass/Sub-Luminous
Companions to M-Stars)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make a search for low mass/sub-luminous companions to low mass M class
stars.  Knowledge of stellar and sub-stellar masses and luminosities at and
below the ~0.08 M{sun} H-burning limit is of fundamental importance.  A
dark calibration image was also taken.  The observations were completed as
planned, and no problems were reported.
1.17 Completed WF/PC-2 7377 (Dwarf Elliptical Galaxy Snapshot Survey II)

       The WF/PC-2 was used to make observations of the dwarf elliptical
galaxy VCC896 as part of Snapshot Survey II.  This survey will provide
important information on the globular cluster systems of such galaxies and
the properties of their cores and nuclei.  The observations were completed
as planned, and no anomalies were reported.

1.18 Completed NIC/1/2 7329 (The Nature of the Damped LyAlpha Absorbers --
A New Study of Young Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the young galaxy Q1144-0723 in order to study the nature of
its damped Lyman-Alpha Absorbers (DLAs).  The DLA line systems,
occasionally found in quasar spectra, provide one of only a few practical
methods of detecting and studying significant numbers of galaxies at high
redshifts.  The observations were executed as scheduled, and no anomalies
were noted.

1.19 Completed Two Sets of WF/PC-2 6673 (Black Holes and Gas Disks in a
Complete Sample of Radio Loud UGC Ellipticals)

       The WF/PC-2 was used to make observations of radio load, elliptical
galaxy UGC08433 in order to search for possible black holes and gas disks.
Hydrogen-Alpha and broad band observations were taken to determine the
luminosity profiles and stellar populations (on the tens of parsec scale),
and detect nuclear regions or disks of gas and dust.  The observations were
completed as planned, and no anomalies were reported.

1.20 Completed NIC/2 7897 (Probing Planetary Formation Around Main-Sequence
Stars: A Snapshot Survey)

       The Near Infrared Camera (Camera Two) was used to make snapshort
survey images of the main sequence star HR2483 probing for planetary
formation.  The IR excess main-sequence stars host cool circumstellar dust
disks, which are most likely replenished by the debris of unseen
planetesimals.  The observations were completed as scheduled, and no
problems were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 8
                                        Successful : 8

   2.2 FHST Updates:

                              Scheduled : 18
                             Successful : 18

   2.3 Operations Notes:

       Using ROP SR-1, the SSR EDAC error counter was cleared twice.

       A TTR was written to document IP data hits at 316/0934Z and at
316/2320Z.

       A MA/GN mode SSR Dump test was successfully supported at 316/1758Z.

       As documented in HSTAR 6769, a NICMOS EDAC single bit error occurred
at 316/143055Z.  The counter incremented to 42 and then 43.  The ground
system limit was adjusted.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH