HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2239

PERIOD COVERED:  0000Z (UTC) 10/28/98 - 0000Z (UTC) 10/29/98

Daily Status Report as of 302/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

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

       The Space Telescope Imaging Spectrograph (CCD) was to be 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.  As described in HSTAR 6741 and yesterday's report, the
re-acquisition for both iterations of this proposal failed, and the take
data flag remained down.

   1.2 Completed Six 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 6741 and yesterday's report,
the re-acquisition for the first iteration of this proposal failed, and the
take data flag remained down.  Otherwise, the observations were completed
as planned, and no further anomalies were noted.

   1.3 Completed WF/PC-2 7713 (WF/P-2 Cycle 7 Supplemental Darks pt3/3)

       The WF/PC-2 was to be 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.  As described in HSTAR 6741 and yesterday's report, the
re-acquisition for this proposal failed, and the take data flag remained
down.

   1.4 Completed NIC/1/2/3 7898 (Snapshot Survey of Proto-planetary Nebulae)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make snapshot survey observations of the protoplanetary nebula IRAS17347.
This is to help discern the structure of the nebulae and the evolutionary
sequence that produces axially symmetric planetary nebulae.  The
observations were executed as scheduled, and no anomalies were noted.

   1.5 Completed WF/PC-2 7431 (Snapshot Survey of Microlensed Source Stars)

       The WF/PC-2 was used to make snapshot survey images of microlensed
source star MACHO-119.  Gravitational microlensing surveys have revealed an
excess of lensing events over theoretical predictions toward both the Large
Magellanic Cloud and the Galactic Bulge.  The observations were completed
as planned, and no anomalies were reported.

   1.6 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 stars HR3927 and HR3720 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.

   1.7 Completed WF/PC-2 6776 (A Comparative HST Imaging Study of Radio
Galaxies and Hosts)

       A clear understanding of the nature of the host galaxies of
radio-quiet quasars, radio-loud quasars and radio galaxies is of central
importance in any attempt to unify and relate the three main classes of
powerful active galaxies.  Existing HST studies of quasar hosts, whilst
producing many interesting new results, have yielded surprisingly little
hard information on the properties of the hosts themselves.  This imaging
study using the WF/PC-2 will remedy this situation by undertaking redder,
line-free observations of matched AGN V1500-Cyg.  The proposal completed
with no reported problems.

   1.8 Completed Eleven Sets of STIS/CCD 8084 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation II)

       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.

   1.9 Completed WF/PC-2 6632 (Morphologies of High Redshifted Radio Galaxies)

       The WF/PC-2 was used to make observations of the high redshifted
radio galaxy Gal-2106-2 in order to study its morphology.  This is part of
a study of the continuum and Lyman-Alpha morphologies of 20 high redshifted
radio galaxies which was begun in Cycle 5.  The observations were completed
as planned, and no problems were reported.

   1.10 Completed Two Sets of NIC/2/3 8082 (NICMOS pure parallel Fall 98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel observations while another instrument is prime.  The
observations were executed as scheduled, and no anomalies were noted.

   1.11 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.

   1.12 Completed NIC/1/2/3 7826 (Near-IR Photometry of M-31's Metal-Rich
Globular Clusters)

       The Near Infrared Camera (Cameras One, Two and Three) were used to
make observations of the metal-rich globular clusters located in Baades
Window.  The high metallicities of the program clusters will make these
observations of particular interest for furthering our understanding of the
evolution of metal rich stars, and for the population synthesis models
meant to study the stellar content of distant, unresolvable bulges and
elliptical galaxies.  The observations were executed as scheduled, and no
anomalies were noted.

   1.13 Completed NIC/3 7901 (NICMOS Post-Campaign Focus
Monitoring)

       The Near Infrared Camera (Camera Three) was used to make some
post-campaign focus monitoring observations by using star cluster NGC-3603.
This proposal is used to determine and monitor the optimal focus and tilt
settings for all three NICMOS cameras after the first NIC/3 observing
campaign.  The observations were executed as scheduled, and no anomalies
were noted.

   1.14 Completed Two Sets of 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 with no anomalies.

   1.15 Completed Three Sets of 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.  The observations were completed as planned, and no problems were
reported.

   1.16 Completed NIC/1/2/3 7336 (Cosmological Parameters Omega and Lambda
From High-Redshift Type Ia Supernovae)

       The Near Infrared Camera (Camera One, Two and Three) was used to
make observations of the high redshifted Type Ia supernova SN97226.  HST
can make a direct measurement of the cosmological parameters, Omega,
Lambda, and curvature, using Type Ia supernovae as calibrated "standard
candles."  The observations were executed as scheduled, and no anomalies
were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 7
                                        Successful : 7
                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 16
                             Successful : 15

       The update at 302/0722Z failed.

   2.3 Operations Notes:

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

       There was a NICMOS single bit error at 301/213455Z.  HSTAR 6742 was
written.  The ground system limit was adjsted to 35.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH