HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2262

PERIOD COVERED:  0000Z (UTC) 12/02/98 - 0000Z (UTC) 12/03/98

Daily Status Report as of 337/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two 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 WF/PC-2 7344 (Witnessing the Birth of Radio Galaxies:
WF/PC-2 & NICMOS Observations of CSOs)

       The WF/PC-2 was used to make observational images of the cores of
bright, nearby galaxy (Compact Symmetric Object) CSO 1146+59 in order to
try to witness the birth of a radio galaxy.  Only HST can image these
galaxies at the same size scale of the CSO itself, also allowing us to
search for nuclear structures aligned with the radio source in this
formative stage.  The observations were completed as planned, and no
anomalies were reported.

   1.4 Completed Twelve 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.  The observations were completed as planned, and no
anomalies were noted.

   1.5 Completed Seven Sets of STIS/CCD 8062 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude observations taken in parallel with the prime science
observations.  The observations were completed as planned, and no problems
were reported.

   1.6 Completed Three 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.

   1.7 Completed WF/PC-2 6967 (Blue Continuum Snapshots of 3CR Radio -
Continued Galaxies)

       The WF/PC-2 was used to make observations of the radio galaxy
3C403.1.  Radio galaxies are an important class of extragalactic objects:
they represent one of the most energetic astrophysical phenomena; they may
be used as probes of their environments; and they are unique probes of the
early Universe.  The observations were completed as planned, and no
problems were reported.

   1.8 Completed STIS/CCD 7310 (The Interaction of Accretion Disks with
Protostellar Binaries)

       The Space Telescope Imaging Spectrograph (CCD) was used to study the
interaction of the accretion disk with the protostellar binary system
Haro6-28.  This should determine how the accretion disk interacts with
stars in young binary systems and will measure the rates that mass
accumulates onto each component of the pair.  A wavelength calibration
image was also taken.  The observations were executed as scheduled, and no
anomalies were noted.

   1.9 Completed Five 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}.  The proposal completed with no reported problems.

   1.10 Completed WF/PC-2 6503 (The Enigma Lens Q2345+007: Early Assembly
of Dark Matter?)

       The WF/PC-2 was used to make deep observations of the lensing double
quasar system Q2345+007.  The current evidence suggests that this double
QSO results from the gravitational lensing effects of a large compact mass
at z = 1.49.  If so, this early formation of compact structure is not
compatible with many forms of dark matter.  The observations were executed
as scheduled, and no anomalies were noted.

   1.11 Completed STIS/CCD/MA2 7402 (Chromospheric Activity in Old Stars:
Halo Subdwarfs' Variability)

       The Space Telescope Imaging Spectrograph (CCD and MA2) was used to
make observations of the old sub-dwarf star HD201891 in order to study its
chromospheric activity.  All normal stars cool enough to have convection
zones share a common minimum level of chromospheric activity which
decreases with advancing spectral type; most show higher emission levels
which vary with time.  A wavelength calibration observation was also taken.
The observations were executed as scheduled, and no anomalies were noted.

   1.12 Completed FOC-96 6713 (Geometric Measurement of Galaxy Distance)

       The WF/PC-2 was used to make observations of supernova remnant
SN1991T in order to make a distance calibration for the galaxy in which it
is located.  The supernova is being used as a powerful new geometric method
for the determination of a galaxy's distance, by obtaining high spatial
resolution imaging polarization of the candidate supernova light echoes.
The observations were completed as planned, and no anomalies were reported.

   1.13 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.

   1.14 Completed NIC/1/2/3 7418 (Imaging of Younf Stellar Object
Circumstellar Nebulosity)

       WF/PC-2 observations have shown that several young stellar objects
in the nearby Taurus molecular clouds are seen only indirectly via
scattered light.  New NICMOS (Cameras One,  Two and Three) images will be
compared with the existing WFPC2 images and with model reflection nebulae
to constrain the circumstellar density distributions.  The dark absorption
lanes already seen in these systems suggest that the NICMOS images will
reveal edge-on disks similar to the HST results for DO-Tau, and thus allow
direct observation of the disk geometry.  The observations were completed
with no reported anomalies

   1.15 Completed STIS/CCD 7310 (The Interaction of Accretion Disks with
Protostellar Binaries)

       The Space Telescope Imaging Spectrograph (CCD) was used to study the
interaction of the accretion disk with the protostellar binary system
FV-Tau-C.  This should determine how the accretion disk interacts with
stars in young binary systems and will measure the rates that mass
accumulates onto each component of the pair.  A wavelength calibration
image was also taken.  The observations were executed as scheduled, and no
anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 9
                                        Successful : 9

                          Scheduled Reacquisitions : 8
                                        Successful : 8

   2.2 FHST Updates:

                              Scheduled : 20
                             Successful : 20

   2.3 Operations Notes:

       Two TTRs were written to document 18 IP data hits on days 336 and 337.

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

       Per ROP NS-3, the NSSC-1 status buffer was dumped at 337/0044Z.

        As directed by ROP IC-2, the SSA1 transmitter was commanded on at
337/0302Z  and off at 337/0345Z.

       There was a NICMOS single bit error at 336/2327Z, and HSTAR 6795 was
written.  The ground system limit was raised to 58 at 336/233211Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH