HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2335

PERIOD COVERED:  0000Z (UTC) 03/23/99 - 0000Z (UTC) 03/24/99

Daily Status Report as of 083/0000Z

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 FOC/96 7347 (Direct Imaging of Betelgeuse)

       The Faint Object Camera (f/96) was used to make observations of the
super giant star Betelgeuse (a.k.a., BD+75D325 or Alpha Orionis).  Our UV
images of Alpha Orionis obtained with the FOC in 1995 {Cycle 5} are the
first direct images of the surface of a star other than the Sun.  The
observations were completed as planned, and no anomalies were reported.

   1.3 Completed Six 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.

   1.4 Completed Three Sets of WF/PC-2 8090 (POMS Test Proposal: WF-II
Parallel Archive Proposal Continuation)

       The WF/PC-2 was used in the parallel mode to make some low galactic
latitude archive observations.  The program will be used to take parallel
images of random areas of the sky.  The observations were executed as
scheduled, and no anomalies were noted.

   1.5 Completed WF/PC-2 8061 (POMS Test Proposal: WF-II Backup Parallel
Archive Proposal)

       This is a POMS test proposal designed to simulate scientific plans.
The proposal was executed as planned, and no anomalies were reported.

   1.6 Completed WF/PC-2 6357 (The Nuclear Morphology of Elliptical Galaxies)

       The WF/PC-2 was used to make images of the early type, large,
elliptical galaxy NGC-5198 (taken from a list of 150 galaxies) in order to
study its nuclear morphology.  This survey will complement Illingworth's
snapshot study of later Hubble types.  The observations were completed as
scheduled, and no anomalies were reported.

   1.7 Completed WF/PC-2 6355 (A UV Atlas of Nearby Galaxies)

       The WF/PC-2 was used to make ultraviolet observations of the nearby
galaxy NGC-4783.  The aim of the project is to build a reference
ultraviolet atlas of galaxies whose optical images are well known, with the
highest possible degree of information, covering all the morphological
types and luminosity classes.  The observations were executed as scheduled,
and no anomalies were noted.

   1.8 Completed Two Sets of STIS/MA1/MA2 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.

   1.9 Completed WF/PC-2 7469 (Internal Velocity Distribution in Globular
Clusters)

       The WF/PC-2 was used to make observations of the globular cluster
NGC-104-R1 in order to study the internal velocity distribution in its
cores and as a function of distance from the cluster center, and thus also
infer its mass distribution.  The observations were executed as scheduled,
and no anomalies were noted.

   1.10 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.

   1.11 Completed STIS/CCD/MA1 7758 (Physics of Diffuse Clouds in the Local
Bubble , Part I : The CMa Tunnel)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was used to
make observations of REJ0503-28 to study the physical conditions in diffuse
clouds in the Local Bubble environment and their interfaces with the hot
gas filling the bubble.  The local interstellar medium presents a favorable
situation to check the general ISM theories.  A wavelength calibration
image was also taken.  The observations were completed as planned, and no
anomalies were reported.

   1.12 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
3C33.2.  Radio galaxies are an important class of extragalactic objects:
they represent one of the most energetic astrophysical phenomena and they
may be used as probes of their environments.  They are unique probes of the
early Universe.  The observations were completed as planned, and no
problems were reported.

   1.13 Completed STIS/CCD 8189 (The Source of Gamma Ray Bursts and the
Nature of their Hosts)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
resolution optical and ultraviolet observations of the Gamma Ray Burster
(GRB) 990123 and its host galaxy.  This comprehensive set of observations
will provide new insights into the astrophysics of GRBs and their high
redshift host galaxies.  The observations were completed as planned, and no
problems were reported.

   1.14 Completed WF/PC-2 6829 (Globular Cluster Core Structure and
Dynamics - Part 2)

       The WF/PC-2 was used to make observations of the globular cluster
NGC-5461 in order to study its core structure and dynamics.  Spectra was
obtained at the center of the ultraviolet brightness, and at a distance
within about one core-radius.  The observations were executed as planned,
and no problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates:

                              Scheduled : 13
                             Successful : 13

   2.3 Operations Notes:

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

       The NSSC-1 status buffer was dumped once per ROP NS-3.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH