HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2119

PERIOD COVERED:  0000Z (UTC) 05/07/98 - 0000Z (UTC) 05/08/98

Daily Status Report as of 128/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three Sets of 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 Two Sets of WF/PC-2/NIC/1/2/STIS/CCD/MA2 7560 (STIS GTO
Observations)

       The WF/PC-2, the Near Infrared Camera (Cameras One and Two) and the
Space Telescope Imaging Spectrograph (CCD and MA2) were used to make
observations  of galaxies NGC-3395 and NGC-3994.  The solar blind and long
slit capabilities of STIS will be used to investigate the population of hot
stars in galaxies.  The observations were executed as scheduled, and no
anomalies were noted.

   1.3 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.

   1.4 Completed STIS/CCD/MA1/MA2 7673 (STIS MAMA Sensitivity and Focus
Monitor)

       The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to
make observations of standard star GRW+70D582 in order to perform a MAMA
sensitivity and focus monitoring program.  This is to monitor sensitivity
of each MAMA grating mode to detect any change due to contamination or
other causes.  The observations were executed as scheduled, 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/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.

   1.7 Completed NIC/2 7330 (The Fueling of Active Nucleii: A NICMOS
Snapshot Survey)

       The Near Infrared Camera (Camera Two) was used to probe the dark
matter distribution of NGC-3351 far from the center by observing
intervening absorption from the MgII doublet (lambda 2800) in the spectrum
of one background QSO located in a geometrically optimal position.  HST
observations are required because this feature is in a wavelength range not
accessible from the ground, and the QSO magnitudes and expected strength of
absorption make IUE observations unfeasible.  The proposal completed as
expected with no anomalies.

   1.8 Completed Two Sets of FGS 7954 (FGS-1R Optimization)

       Desorption and gravity release effects have modified the morphology
and modulation of the FGS1R Transfer Function.  This test will accomplish a
re-optimization of the performance of FGS1R by adjusting the FF3 mirror
until the S curve at the center of the field of view is comparable to the
optimized S curve obtained during SMOV.  This test requires special data
downlinks and uplinks for real-time commanding of the FF3.  The test
concluded with no reported problems.

   1.9 Completed NIC/1/2 7329 (The Nature of the Damped LyAlpha Absorbers
-- A New Study of Young Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the young galaxy Q1346-0322 in order to study the nature of
its damped Lyman-Alpha Absorbers.  The damped Lyman-Alpha absorption line
systems {DLAs}, occasionally found in quasar spectra, provide one of only a
few practical methods of detecting and studying significant numbers of
galaxies at high redshifts.  The observations were executed as scheduled,
and no anomalies were noted.

   1.10 Completed Two 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.

   1.11 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.

   1.12 Completed Two 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.

   1.13 Completed STIS/CCD/WF/PC-2/NIC/1/2 7569 (The Nuclear Region of
NGC-4151)

       The Space Telescope Imaging Spectrograph (CCD), the WF/PC-2 and the
Near Infrared Camera (Cameras One and Two) were used to make observations
of the nuclear region of Seyfert galaxy NGC-4151 which will be studied in
several ways: 1) low-resolution spectra over the entire UV and visible
range will be obtained; 2) slitless spectra of strong emission lines at
moderate resolution and narrow-band WF/PC-2 images will be used to map the
dynamics of the regions; 3) Echelle spectra over the entire UV bandpass
will be used to study the intrinsic absorption in the nucleus; and 4)
parallel imaging will be performed of the outer galaxy and other galaxies
or QSOs.  The observations were completed as planned, and no problems were
reported.

   1.14 Completed NIC/1/2/3 7831 (NICMOS Study of Nova Shells)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the nova shock shell around nova QU-Val.  The angular
expansion rates and spatial distribution of the ejecta in both the
continuum and emission lines of ionized gas will be determined.  The
observations were executed as scheduled, and no anomalies were noted.

   1.15 Completed NIC/2 7273 (The Molecular Torus and Ionized Gas in the
Circinus Galaxy)

       The Near Infrared Camera (Camera Two) was used to make observations
of molecular torus and ionized gas in the galaxy Curcinus.  In the current
AGN paradigm, distributions of ionized gas in so-called 'ionization cones'
are believed to be produced by shadowing of the central source of ionizing
radiation by a molecular torus.  The observations were completed as
scheduled, and no problems were reported.

   1.16 Completed STIS/CCD 7911 (STIS Galactic Plane Pure Parallel Program)

       The Space Telescope Imaging Spectrograph (CCD) was used to make low
galactic latitude survey observations in parallel with the prime science
observations.  Short exposures with the 50CCD imaging mode will provide the
wavelength zero-point calibration.  These data will be placed immediately
into the Hubble Data Archive.  The observations were executed as scheduled,
and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 11
                                        Successful : 11

                          Scheduled Reacquisitions : 5
                                        Successful : 5

   2.2 FHST Updates:

                              Scheduled : 17
                             Successful : 17

   2.3 Operations Notes:

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

       Yesterday's Articulated Mirror Assembly (AMA) move, at 127/0609Z,
was eight steps in the reverse direction.  The next (contingency) step in
the Optimization of FGS-1R is scheduled to begin this morning at
approximately 128/1121Z.  The final move, to place the AMA at its original
position, is at 129/1456Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH