HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2284

PERIOD COVERED:  0000Z (UTC) 01/11/99 - 0000Z (UTC) 01/12/99

Daily Status Report as of 012/0000Z

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 Five 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.

   1.3 Completed ThreeSets 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.

   1.4 Completed FGS 7677 (Monitor the Long Term Stability of FGS-3)

       The goal of these measurements is to monitor the internal positional
stability of FGS3 by measuring the star OF957 (and other reference stars)
in the M35 check field repeatedly over a one year period.  The results of
these measurements are the stability characteristics of FGS3 which allow an
estimate of differential corrections to OFAD and plate scale.  The
measurements were completed as scheduled, with no reported anomalies.

   1.5 Completed WF/PC-2 6659 (A Search For Superplanets Around Weak T-
Tauri Stars)

       The WF/PC-2 was used to make observations in the 1 micron band of
the T-Tauri class star HBC374 in order to search for superplanets.  Weak
T-Tauri class stars are thought to have dissipated their circumstellar
disks recently, possibly by forming planetary systems.  The observations
were completed as planned, and no anomalies were reported.

   1.6 Completed Four Sets of STIS/MA1/ma2 7950 (Cycle 7 MAMA Dark
Measurements)

       The Space Telescope Imaging Spectrograph (MA1 and MA2) 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.

   1.7 Completed 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.

   1.8 Completed WF/PC-2 6671 (Deep V, I Photometry for 20 M31 Globular
Clusters)

       The WF/PC-2 was used to make deep photometry observations (V=27.5)
of the globular cluster M-31- G76 which is located in the Andromeda Galaxy
(a.k.a., M-31).  The observations were executed as planned, and no problems
were reported.

   1.9 Completed Two Sets of 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.

   1.10 Completed Two Sets of STIS/CCD 8091 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude, non-scripted, parallel observations.  The observations
were completed as planned, and no anomalies were noted.

   1.11 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.

   1.12 Completed WF/PC-2 6603 (Probing Proto-Planetary Disks in the Orion
Nebula)

       The WF/PC-2 was used to make images of the proto-planetary disk
NGC-1976 which is located in the Orion Nebula.  This is to study the
fundamental physical properties and structures of recently discovered, and
uniquely visible, proto-planetary disks around young stars.  The
observations were completed as planned, and no problems were reported.

   1.13 Completed WF/PC-2 7387 (T-Tauri Star Snapshot Survey)

       The WF/PC-2 was used to make observations of the star AA-Tau as part
of a T-Tauri class star survey.  The observations were executed as
scheduled, and no anomalies were noted.

   1.14 Completed STIS/CCD/MA1 7402 (Chromospheric Activity in Old Stars:
Halo Subdwarfs' Variability)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was used to
make observations of the old sub-dwarf star HD19445 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.

   1.15 Completed WF/PC-2 7385 (Low-Mass Halo Binaries)

       The WF/PC-2 was used to make observations of the low mass, halo,
binary, {Population II}, M-type, sub-dwarf, star LHS541.  This star is too
faint to be resolved through ground-based speckle interferometry, thus HST
represents the only means of probing separations.  The observations were
completed as planned, and no anomalies were reported.

   1.16 Completed STIS/MA1 7309 (Mapping of the H-2 Emission and Color
Ratio in the Jovian Aurora)

       The Space Telescope Imaging Spectrograph (MA1) was used to study the
H-2 emission and color ratio of the aurora on the planet Jupiter.  ROSAT
has recently observed equatorial x-ray emissions that imply a S-III
longitude/solar local time dependent energetic ion precipitation from the
inner radiation belts, which should produce observable enhancements to the
H-2 dayglow emission at low-latitudes.  A wavelength calibration
observation 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:

        The SSR EDAC error counter was cleared twice using ROP SR-1.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH