HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1931

PERIOD COVERED:  0000Z (UTC) 07/30/97 - 0000Z (UTC) 07/31/97

Daily Status Report as of 212/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three Sets of WF/PC-2 7621 (WF/PC-2 Cycle 7 Supplemental
Darks PT1/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
This set of dark calibrations is intended to obtain 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 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.

   1.3 Completed NIC/2 7420 (A Near-Infrared Search for Very Low Mass
Companions to Stars Within 10 pc of the Sun)

       The Near Infrared Camera (Camera Two) was used to make searching
observations for very low mass companions to star LHS465.  This star is
known to be within 10 parsecs of the Sun.  The observations were executed
as scheduled, and no anomalies were noted.

   1.4 Completed Two Sets of NIC/1/2/3 7447 (The Cosmological Evolution of
Quasar Host Galaxies)

       The Near Infrared Camera (NIC One, Two and Three) was used to make
observations of galaxy 1148+56W1 as part of a survey to study the
cosmological evolution of galaxies which host quasars.  Other point spread
function observations were taken to test the calibration of the cameras.
The observations were executed as scheduled, and no anomalies were noted.

   1.5 Completed Six Sets of STIS/CCD 7727 (STIS Non-Scripted Parallel
Archive Proposal)

       The Space Telescope Imaging Spectrograph (CCD) was used to obtain
parallel 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.  The observations were completed as
planned, and no anomalies were reported.

   1.6 Completed WF/PC-2 6253 (Pure Parallel Archive Program)

       The WF/PC-2 was used to execute a pure parallel program taking
ultraviolet observations running concurrently with prime science
observations.  The intent is to search for extra-galactic sources with flux
excesses at 3000 A0 and galactic sources with excesses at 1600 A0.  The
observations were completed as planned, and no problems were reported.

   1.7 Completed WF/PC-2 6677 (The Origin of the X-Ray Background: What are
the Faintest X-Ray Galaxies?)

       The WF/PC-2 was used to make observations of GAL-133331 which is
from the deepest optically identified (ROSAT) X-ray survey yet.   These
images were taken to determine the morphologies of the remaining systems
which we cannot study from the ground to decide whether the remaining
non-QSO XRB might be explained by emission from interacting or disturbed
spirals.  The observations were completed as planned, and no anomalies were
reported.

   1.8 Completed Seven Sets of NIC/3 7780 (NICMOS Short One Orbit Parallel
- Camera 3 Focus Test)

       The Near Infrared Camera (Camera Three) was used to conduct a short
one orbit focus test which was conducted in parallel with the prime science
observations.  The observations were completed as scheduled, and no
anomalies were noted.

   1.9 Completed WF/PC-2/STIS/MA1 7308 (HST FAR-UV Imaging and Spectra of
Jupiter's Aurora Coordinated With Galileo)

       The WF/PC-2 was used to make far-ultraviolet imaging and spectral
observations of the aurora near the north pole of the planet Jupiter at the
same time as scheduled Galileo spacecraft measurements of Jupiter's
magnetospheric properties and ultraviolet emissions over summer/fall 1997.
The observations were completed as planned, and no anomalies were reported.

   1.10 Completed NIC/1/2/3 7775 (NICMOS Earth Flats)

       The Near Infrared Spectrograph Multi-Object Camera (NICMOS) was used
to make Earth flat calibration observations.  This proposal obtains a
series of Earth flats for a subset of narrow-, medium-and broad-band NIC 1,
2 and 3 filters.  These flats will be used to generate the master flats for
narrow-band filters and to determine the OTA illumination pattern as a
function of wavelength and camera.  The observations were completed as
scheduled, and no problems were noted.

   1.11 Completed FOC/96/WF/PC-2  7274 (Secular Changes in the Jet of M-87)

       The Faint Object Camera (f/96) and the WF/PC-2 were both used to
make observations of the secular changes in the jet coming off of the
active galactic nuclei of galaxy M-87.  Past observations with the FOC have
shown changes as small as 0.03", and provide a unique opportunity to study
proper motions and structural changes of the jet.  An internal flat
calibration image was also taken.  The observations were completed as
scheduled, and no anomalies were reported.

   1.12 Completed WF/PC-2 6763 (Deep Imagery of NGC-3603: Low Mass Star
Formation)

       The WF/PC-=2 was used to make observations of NGC-3603 in order to
study its low mass star formation.  The observations were completed as
planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 7
                                        Successful : 7

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates:

                              Scheduled : 8
                             Successful : 8

   2.3 Operations Notes:

       The SSR Interrupt Log was dumped at 211/1603Z.

       The SSR Event Buffer was dumped at 211/2036Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH