HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2260

PERIOD COVERED:  0000Z (UTC) 11/30/98 - 0000Z (UTC) 12/01/98

Daily Status Report as of 335/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Six Sets of 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.

   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 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.

   1.4 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.

   1.5 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
V807-Tau.  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.

   1.6 Completed WF/PC-2 6356 (Snapshot Survey of Ultraluminous Infrared
Galaxies)

       The WF/PC-2 was used to make observations of galaxy Gal-020527 as
part of a survey of ultraluminous infrared galaxies.  The nature of
ultraluminous infrared galaxies has generated considerable controversy.
The two main issues are: {1} are they powered by violent bursts of star
formation or by hidden quasars?  {2} are interactions and mergers
invariably involved?  The observations were executed as scheduled, and no
anomalies were noted.

   1.7 Completed WF/PC-2 6790 (Mass Determination of QSOs Using
Gravitational Lensing)

       The WF/PC-2 was used to make observations of quasar QSO-2132-4 as
part of a program to measure the mass of quasar using the gravitational
lensing effect.  Only four pairs of quasars with different redshifts and
angular separations smaller than 5'' are presently known.  The observations
were completed as planned, and no problems were reported.

   1.8 Completed Four 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.

   1.9 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}.  The proposal completed with no reported problems.

   1.10 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.

   1.11 Completed FOC/96 6350 (FOC spectroscopy of BALQSOs)

       The Faint Object Camera (f/96) was used to make ultraviolet
spectrographic images of BALQSO 0059-2735 which is known to show broad
emission lines from abundant ions. This will help us improve our knowledge
of these BAL class objects. The observations were executed as scheduled,
and no anomalies were noted.

   1.12 Completed WF/PC-2 6651 (WLR Distances from Accurate Multi-Color
WF/PC-2 Photometry of A & B Supergiants in M-31 and M-33)

       The WF/PC-2 was used to make multi-color photometric observations of
NGC-598 (a.k.a., M-33).  This is to study A and B supergiant stars in M-31
and M-33 with a precision far exceeding that of existing ground-based
estimates.  The observations were completed as planned, and no problems
were reported.

   1.13 Completed STIS/CCD 7912 (STIS Parallel Archive Proposal - Nearby
Galaxies - Imaging and Spectroscopy)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
parallel observations of nearby galaxies.  This survey will be useful to
study the star formation histories, chemical evolution, and distances to
these galaxies.  These data will be placed immediately into the Hubble Data
Archive.  The observations were completed as scheduled, and no problems
were reported.

   1.14 Completed FOC/96 6713 (Geometric Measurement of Galaxy Distance)

       The Faint Object Camera (f/96) was used to make observations of
supernova remnant SN1978K 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.

   1.15 Completed Three Sets of STIS/MA1 7950 (Cycle 7 MAMA Dark Measurements)

       The Space Telescope Imaging Spectrograph (MA1) was used to make a
dark calibration image.  This is to establish if the detectors are
performing nominally, that no internal movement of the MCP has taken place,
and establish dark level in orbit for a given operating temperature.  These
darks will be used in later image reduction and also trended over
instrument life time as indicators of detector degradation or damage.  The
observations were completed as planned, and no problems were reported.

   1.16 Completed NIC/2/3 7962 (NICMOS Warm-up Focus Monitoring)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations of the globular cluster and nebula of NGC-3603 as part of the
NICMOS warm-up focus monitoring.  This proposal is used to determine and
monitor the optimal focus settings for NIC/2 and NIC/3 during the dewar
warm-up period at the end of 1998.  The observations were executed as
scheduled, and no anomalies were noted.

   1.17 Completed NIC/1/2/3 8088 (Cosmological Parameters Omega and Lambda
from High-Z Type Ia Supernovae - DD)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of a high-Z supernova in order to determine the
cosmological parameters Omega and Lamda.  The observations were executed as
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 6
                                        Successful : 6

                          Scheduled Reacquisitions : 9
                                        Successful : 9

   2.2 FHST Updates:

                              Scheduled : 14
                             Successful : 14

   2.3 Operations Notes:

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

       Two TTRs were filed for a total of six data hits, missing minor
frames, and two data inversions.  Another TTR documents 56 minutes loss of
recoverable 32K data due to an IP problem.

       The NICMOS internal log was dumped at 334/2126Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH