HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1914

PERIOD COVERED:  0000Z (UTC) 07/07/97 - 0000Z (UTC) 07/08/97

Daily Status Report as of 189/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Four Sets of WF/PC-2 6904 (WF/PC-2 Cycle 6 Cal.:Darks)

       The WF/PC-2 was used to make a series of several dark calibration
images as part of a standard calibration within Cycle 6.  This calibration
procedure is performed once per week as part of an on going CCD calibration
to be used to monitor and characterize hot pixels.  The observations were
executed as scheduled, and no anomalies were noted.

   1.2 Completed Two Sets of 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-3486 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.

   1.3 Completed STIS/MA2 7604 (Cycle 7 MAMA Dark Measurements)

       The Space Telescope Imaging Spectrograph (MA2) was used to make MAMA
dark measurements.  These darks will be used in later image reductions and
also trended over the instrument's life time as an indicator of the
detector's degradation or damage.  The observations were completed as
scheduled, and no problems were reported.

   1.4 Complete WF/PC-2 5993 (Dark Matter Distribution in A1689 from
gravitational lensing)

       The WF/PC-2 was used to make observations of galaxy cluster A1689-10
in order to study the distribution of dark matter in the lensing galaxy
cluster system.  This is to carry out an extensive survey of the galaxies
lying behind this cluster.  The observations were completed as planned, and
no problems were reported.

   1.5 Completed Two Sets of NIC/3 7611 (NICMOS Parallel Thermal Background
Test)

       The Near Infrared Camera (Camera Three) was used to make
observations of an object designated a Target-1 in order to conduct a
parallel thermal background test.  This test was conducted in order to
measurement of the stability of the HST thermal emission.  The observations
were executed as scheduled, and no anomalies were noted.

   1.6 Completed STIS/CCD 7700 (STIS Non-Scripted Parallel Archive Proposal)

       The Space Telescope Imaging Telescope (CCD) was used to obtain
slitless spectroscopy with the G750L grating to search for emission line
galaxies at intermediate to high redshift.  Field galaxy surveys have shown
that at high redshift most galaxies have strong emission lines, and are
compact and blue.  This suggests that star formation rates were higher than
at present,and that AGN may have been more frequent.  The low background
and high resolution of HST separates these objects from the background.
The proposal completed as planned, and no problems were reported.

   1.7 Completed STIS/CCD 7659 (Daily Darks to Update Acquisition Bad Pixel
Table)

       The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad pixel table.
Daily hot pixel lists can also be used for science data analysis.  The
observations were executed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 6587 (Black Holes and Cores of Early-Type Galaxies)

       The WF/PC-2 was used to make observations of early-type galaxy
NGC-4478 in order to study its nuclear core region and its possible black
hole.  The campaign to find black holes in the centers of galaxies using
HST has so far been highly successful.  The observations were completed as
planned, and no problems were reported.

   1.9 Completed WF/PC-2 6837 (The Ultraviolet Properties of "Dwarf"
Seyfert 1 Nuclei)

       The WF/PC-2 was used to make ultraviolet observations of the
"dwarf", type one, Seyfert galaxy NGC-4138.  This class of "dwarf" Seyfert
populate the faint end of the local AGN luminosity function and hold
important clues to the evolution of the entire AGN population.  The
observations were completed as scheduled, and no problems were reported.

   1.10 Completed WF/PC-2 7429 (Uranus' Vertical Haze Structure and its
Variation With Latitude)

       The WF/PC-2 was used to make wide range ultraviolet observations of
the planet Uranus in order to study its vertical haze structure and its
variation with latitude.  The wide wavelength range allows determination of
aerosol sizes and spectral characteristics superior to previous work.  The
observations were executed as scheduled, and no anomalies were noted.

   1.11 Completed WF/PC-2 6194 (WF/PC-2 Cycle 5: Polarization Proposal)

       The WF/PC-2 was used to make polarization observations of star
BD+64D106 at four different spacecraft roll angles.  This should permit a
detailed and independent calibration of each polarizer quad.  A visual flat
calibration image was also taken.  The observations were executed as
scheduled, and no anomalies were noted.

   1.12 Completed FOC/96 6711 (Confirmation of a New Small-Separation
Gravitational Lens Candidate)

       The Faint Object Camera (f/96) was used to make observations of
object UM670 to try to confirm the fact that this is a small separation
gravitational lens system.  This object has a separation of only 0.1" and a
magnitude difference of about 2 magnitudes.  The observations were
completed as planned, and no anomalies were reported.

   1.13 Completed WF/PC-2 6802 (Cosmology with The Medium Deep Survey)

       The WF/PC-2 was used to make observations in parallel with the prime
science observations as part of the Medium Deep Survey.  These parallel MDS
exposures have provided unique high resolution images which clearly
supplement the primary HST surveys.  The observation were executed as
scheduled, and no anomalies were noted

   1.14 Completed FOC/96 6667 (The Far-UV Evolution of Elliptical Galaxies)

      The Faint Object Camera (f/96) was used to make far-ultraviolet
observations of a large elliptical galaxy M-4 CR831 (near M-4).  The far-UV
spectra of nearby giant elliptical galaxies are characterized by a "UV
rising branch", which varies greatly in strength from galaxy to galaxy.
The observations were executes as planned, and no problems were reported.

   1.15 Completed FOC/96 6426 (A Search for Multiple Images of QSOs Seen
Through Damped Ly-Alpha Absorbers)

    The Faint Object Camera (f/96) was used to make observations of QSO
0058-292.  The propose of these observations is to obtain high-resolution
images of a sample of QSOs with strong damped Lyman-Alpha absorption in
their spectra.  The observations should determine whether these QSOs are
multiply imaged by gravitational lensing.  The observations were completed
as planned, and no problems were reported.



2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 9
                                        Successful : 9

The acquisition at 189/0040 defaulted to fine lock on FGS-2 only.  HSTAR
6116 was written

                          Scheduled Reacquisitions : 2
                                        Successful : 2

   2.2 FHST Updates:

                              Scheduled : 13
                             Successful : 13

   2.3 Operations Notes:

       The STIS Bad Pixel Table was uplinked at 188/2038Z.

       The SSR Interrupt Log was dumped at 189/0421Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science and SMOV operations.

/DMH