HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2292

PERIOD COVERED:  0000Z (UTC) 01/21/99 - 0000Z (UTC) 01/22/99

Daily Status Report as of 022/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed 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 WF/PC-2 6633 (Cusps or Cores in Barred Bulges?)

       The WF/PC-2 was used to make observations of the SB class (Barred)
galaxy NGC-4500 in order to study its nuclear bulge region and cusps.  This
is a highly tri-axial, tumbling, low-mass stellar systems.  The
observations were completed as planned, and no problems were reported.

   1.3 Completed Four 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 Two 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.

   1.5 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.

   1.6 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-3603 (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 STIS/CCD 7464 (The Evolution of Massive Stars as a
Function of Metallicity: Closing the Loop Observationally)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the giant OB class star M-33- OB12-0 which is located in
the M-33 galaxy.  The galaxies of the Local Group provide the laboratories
for testing how massive stars evolve as a function of metallicity.  A
wavelength calibration image was also taken.  The observations were
executed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 8059 (POMS Test Proposal: WF-2 Targeted Parallel
Archive Proposal)

       The WF/PC-2 was used to make observations in parallel with the prime
science observations.  The parallel opportunities available with WF/PC-2 in
the neighborhood of bright galaxies are treated in a slightly different way
from the normal pure parallels.  Local group galaxies offer the opportunity
for a closer look at young stellar populations.  The observations were
completed as planned, and no anomalies were reported.

   1.9 Completed WF/PC-2 6356 (SNAPSHOT Survey of Ultraluminous Infrared
Galaxies)

       The WF/PC-2 was used to make observations of galaxy Gal-231402 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.

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

       The WF/PC-2 was used to make observations of the radio galaxies
3C17.0 and 3C325.0.  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.

   1.11 Completed STIS/CCD 7356 (Intrinsic UV and X-ray Absorption in QSOs)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the quasi-stellar source (QSO) and radio galaxy 3C288-1.
Intrinsic ultraviolet absorption lines in QSOs could identify ubiquitous
and relatively massive gas components near QSOs.  A wavelength calibration
image was also taken.  The observations were completed as planned, and no
anomalies were reported.

   1.12 Completed Two 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.

   1.13 Completed Two Sets of 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.

   1.14 Completed STIS/CCD 7357 (Testing the Nature of "Type 2" Liners)

       The Space Telescope Imaging Spectrograph (CCD) was to be used to
observe NGC-3507, a "Type 2" LINER.  LINERs, like Seyferts, come in two
varieties: "type 1" have broad permitted lines and "type 2" only have
narrow lines.  While LINER 1s undoubtedly are genuine AGNs, the true nature
of LINER 2s remains unknown, although they make up most of the LINER
population.  During this proposal, the guide star acquisition failure
described in 2.1 and HSTAR 6932 occurred, and the take data flag remained
down.

   1.15 Completed STIS/MA1 7651 (STIS MAMA Dispersion Solution Check)

       The Space Telescope Imaging Spectrograph (MAMA-1) was to be used to
make MAMA dispersion solution checks.  Wavelength dispersion solutions will
be determined on a yearly basis as part of a long-term monitoring program.
During this proposal, the guide star acquisition failure described in 2.1
and HSTAR 6932 occurred, and the take data flag remained down.


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

       The WF/PC-2 was used to make observations of the star RNO-91 as part
of a T-Tauri class star survey.  The observations were executed as
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 14
                                        Successful : 12

       Per HSTAR 6932, the acquisition scheduled at 021/192523Z failed when
the FGS-1 search radius limit was exceeded.  The proposals described in
1.14 and 1.15 were affected.

       The acquisition at 022/064126Z failed due to the search radius limit
being exceeded on FGS-3.  HSTAR 6935 was written.  Two proposals, WF/PC-2
6967 and STIS 8091, occurring during the period of the next report were
affected.

                          Scheduled Reacquisitions : 1
                                        Successful : 1

   2.2 FHST Updates:

                              Scheduled : 20
                             Successful : 20

   2.3 Operations Notes:

        Using ROP SR-1, the SSE EDAC error counter was cleared three times.

       The STIS flight software error counter was reset per ROP NS-12.

       One TTR was written to document 23 missing minor frames that
happened at 021/0956Z.  Another TTR was produced for a 10-minute
recoverable loss of real-time 32k data due to a special function gateway
problem at JPL.  This latter problem affected a Canberra
proficiency test that will be re-scheduled.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH