HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2245

PERIOD COVERED:  0000Z (UTC) 11/05/98 - 0000Z (UTC) 11/06/98

Daily Status Report as of 310/0000Z

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 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.

1.2 Completed 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.

1.3 Completed NIC/3 7903 (NICMOS GRISM Dispersion Monitoring)

       The Near Infrared Camera (Camera Three) was used to perform GRISM
dispersion monitoring by making observations of source HB12.  This is to
monitor the wavelength dispersion solution for the NICMOS grisms after the
NIC/3 Campaign.  The observations were completed as scheduled, and no
anomalies were reported.

1.4 Completed 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 WF/PC-2 7622 (WF/PC-2 Cycle 7 Internal Monitor)

       The WF/PC-2 was used to make a set of Cycle 7 internal monitoring
calibration measurements.  A variety of internal exposures are obtained in
order to provide a monitor of the integrity of the CCD camera electronics
in both bays {gain 7 and gain 15}, a test for quantum efficiency in the
CCDs, and a monitor for possible buildup of contaminants on the CCD
windows.  A bias calibration and an internal flat calibration image were
also taken.  The observations were executed as scheduled, and no anomalies
were noted.

1.6 Completed STIS/MA1/MA2 7308 (HST FAR-UV Imaging and Spectra of
Jupiter's Aurora Coordinated With Galileo)

       The Space Telescope Imaging Telescope (MA1/MA2) was used to make
far-ultraviolet imaging and spectral observations of the aurora near both
poles of the planet Jupiter at the same time as scheduled GALILEO
spacecraft measurements of Jupiter's magnetospheric properties and
ultraviolet emissions over summer/fall 1997.  The observations were
completed as planned, and no anomalies were reported.

1.7 Completed STIS/MA2 7965 (STIS MAMA Fold Analysis for Cycle 7)

        The Space Telescope Imaging Telescope (MA2) was used to conduct a
MAMA fold analysis  for cycle 7.  This proposal executes the same steps to
measure the fold distribution as the SMOV proposal {7106}, except that the
line lamp is used with ND filters instead of the flatfielding lamps.  The
proposal concluded with no reported problems.

1.8 Completed NIC/2 7828 (Detection of the Infrared Jet in the R-Aquarii
Binary System)

       The Near Infrared Camera (Camera Two) was used to make observations
of the variable binary star R-Aqrarii to detect its infrared jet.  The
nearby {~200 pc} R-Aqrarii symbiotic system is a well-known prototype for
non-relativistic astrophysical jets.  The observations were executed as
scheduled, and no anomalies were noted.

1.9 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-95-7.  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.

1.10 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.

1.11 Completed STIS/CCD/MA1 7295 (Galaxy Rotation Curves at Large Radius
using Lyman-alpha Absorption Lines)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was used to
make rotational spectrographic observations of the galaxy PG1049-005.  This
is to investigate the outer rotation curves of eight spiral galaxies at
very large galactocentric radii by using the kinematical information from
Lyman-alpha absorption lines in the spectra of background quasars.  The
observations were executed as scheduled, and no problems were reported.

1.12 Completed Four 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.

1.13 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.

1.14 Completed STIS/CCD/MA1/MA2 7389 (Chromospheres and transition layers
in Hyades and Pleiades F stars)

       The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used
to make observations of the F class star HD29419 which is located in the
Hyades star cluster.  This proposal seeks to obtain additional empirical
constraints on the heating mechanisms for stellar chromospheres, transition
layers and coronae.  A wavelenth calibration obseration was also taken.
The observations were completed as planned, and no problems were reported.

1.15 Completed 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.

1.16 Completed WF/PC-2 7282 (A Continuing Snapshot Survey for Compact
Stellar Groups and Clusters around Wolf-Rayet Stars)

       The WF/PC-2 was used to make observations of the Wolf-Rayet star
WR19 as part of a continuing snapshot survey of compact stellar groups and
clusters.  The newly imaged clusters allow us to accurately determine the
distances, luminosities, and ages of the WR members.  The observations were
executed as scheduled, and no anomalies were noted.

1.17 Completed NIC/1/2 7856 (Jets, Cones and the Alignment Effect in High-Z
Radio Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the radio galaxy 3C266.  Two distinct physical mechanisms
-- anisotropic quasar illumination and jet-cloud interactions -- are
required to explain the general properties of high-z {z > 0.5} radio
galaxies.  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:

     The SSR EDAC error counter was cleared two times per ROP SR-1.

       The Battery #2 Capacity Check Test continues.  Discharge ended at
309/1438Z: recharge began at 309/1457Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Today, at approximately 310/2154Z, the process to return HST to a
normal four gyro configuration begins.  Gyro #6 failed on day 295.  Gyro #2
was successfully turned on earlier this week.  Upon completion of the
exercise, gyros #3, #1, #5, and #2 will be in use.

       Continuation of normal science observations and calibrations.

/DMH