HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2123

PERIOD COVERED:  0000Z (UTC) 05/13/98 - 0000Z (UTC) 05/14/98

Daily Status Report as of 134/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental Darks pt2/3)

       The WF/PC-2 was used to make a series of Cycle 7 supplemental
calibration darks.  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 executed as scheduled, and no
anomalies were noted.

   1.2 Completed NIC/1/2/3 7824 (Deep NIC Images of 20 High-Z Damped
Ly-Alpha Galaxies)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
make observations of the high-Z damped Lyman-Alpha (DLA) galaxy Q0841+1256.
The HST imaging together with ground-based spectroscopy will unify
absorption-line studies and faint galaxy imaging studies, providing a
comprehensive picture of the history of assembly, star formation, gas
consumption, and chemical enrichment in the DLA galaxies.  The observations
were completed as planned, and no problems were reported.

   1.3 Completed STIS/CCD 7803 (Daily Darks to Update Acquisition Bad Pixel
Table Part III)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
daily dark calibration updates.  These daily darks are intended to identify
hot pixels for update to the acquisition on-board FSW hot pixel table.
Daily hot pixel lists can also be used for science data analysis.  The
observations were completed as planned, and no anomalies were reported.

   1.4 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.

   1.5 Completed STIS/CCD 7926 (CCD Dark and Bias Monitor -- Continued)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
several dark and bias calibration observations.  This is 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.  These observations will also 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.

   1.6 Completed Three Sets of STIS/CCD 7908 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
calibration observations as part of the POMS Test Proposal.  This was a
STIS non-scripted parallel proposal.  The observations were completed as
planned, and no problems were reported.

   1.7 Completed NIC/2 7226 (Search for Massive Jupiters)

       The Near Infrared Camera (Camera Two) was used to make a corographic
search for massive planets around nearby, young main sequence stars.
Because of the extreme youth of these objects, any low-mass brown dwarf and
planetary companions will still be in a higher luminosity phase and thus
easily detectable.  A dark calibration image was also taken.  The
observations were executed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 7590 (Cosmological Parameters Omega and Lambda
From High-Redshift Type IA Supernovae)

       The WF/PC-2 was used to make observations of type 1A supernova
14H0.9Z2 in order to study its redshift.  The HST was used to make direct
measurements of the cosmological parameters Omega, Lambda, and curvature
using Type 1A supernovae as a calibrated "standard candle".  The
observations were executed as scheduled, and no anomalies were noted.

   1.9 Completed Three Sets of NIC/2/3 7907 (NICMOS Pure Parallel Winter 97-98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel spectrographic observations of sky regions when another
instrument is prime.  The observations were completed as planned, and no
anomalies were reported.

   1.10 Completed WF/PC-2 7336 (Cosmological Parameters Omega and Lambda
From High-Redshift Type Ia Supernovae)

       The WF/PC-2 was used to make observations of the high redshifted
Type Ia supernova 14H0.5Z1.  HST can make a direct measurement of the
cosmological parameters, Omega, Lambda, and curvature, using Type Ia
supernovae as calibrated "standard candles."  The observations were
executed as scheduled, and no anomalies were noted.

   1.11 Completed NIC/2 7834 (A Search for Giant Planets Around Very Young
Nearby Late-type Dwarfs)

       The Near Infrared Camera (Camera Two) was used to make observations
of the very young, late-type, dwarf star HD108767B as part of a search for
large planets.  Very young late-type dwarfs at distances closer than 30 pc
are excellent sites to provide a direct detection of extrasolar planets.
The observations were executed as scheduled, and no anomalies were noted.

   1.12 Completed STIS/MA1 7434 (The Supernova Intensive Study)

       The Space Telescope Imaging Spectrograph (MA1) was used to continue
the long-term project on supernovae by observing SN1998S.  HST can make
unique contributions to understanding supernovae, as has been demonstrated
through this program in past years, and now STIS and NICMOS offer new
opportunities for deepening this investigation.  The aim of the proposal is
to explore the UV emission from supernovae, exploit the spatial resolution
of HST and press the late-time observations of supernovae into uncharted
territory.  The observations were completed as planned, and no anomalies
were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 18
                             Successful : 18

   2.3 Operations Notes:

       Using ROP SR-1, the SSR correctable EDAC counts were cleared two times.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH