HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1898

PERIOD COVERED:  0000Z (UTC) 06/12/97 - 0000Z (UTC) 06/13/97

Daily Status Report as of 164/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed NIC/2 7498 (NICMOS Imaging Survey of Distant Radio
Galaxies. Ellipticals at Z>2 ?)

       The Near Infrared Camera (Camera Two) was used to make high
resolution and high signal-to-noise ratio imaging survey observations of
the radio galaxy MRC0943-24.  The existence and photometric properties of
massive elliptical galaxies at high redshift provide a powerful probe of
galaxy evolution.  The observations were executed as scheduled, and no
anomalies were noted.

   1.2 Completed WF/PC-2 7203 (Cosmology with the Medium Deep Survey -
Short Orbit Cases)

       The WF/PC-2 was used to take short (about 20 minute) exposures, to
be taken in parallel with the prime science observations, using the I
filter.  These exposures are part of the medium-deep survey, which
emphasizes exposures that will be useful in obtaining cosmological
parameters.  The observations were completed as planned, and no problems
were reported.

   1.3 Completed WF/PC-2 7553 (Pure Parallel Archive Survey II)

       WF/PC-2 parallel observations were obtained in the ultraviolet in
search for interesting objects.  This program is designed to find
extragalactic sources with near ultraviolet excesses (3000 A0) outside the
galactic plane and far ultraviolet sources (1600 A0) in the galactic plane.
The procedure was executed as scheduled, and no anomalies were reported.

   1.4 Completed Two Sets of WF/PC-2 6194 (WF/PC-2 Cycle 5: Polarization
Proposal)

       The WF/PC-2 was used to make visual flat calibration observations.
This should permit a detailed and independent calibration of each polarizer
quad.  The observations were executed as scheduled, and no anomalies were
noted.

   1.5 Completed Two Sets of NIC/1/2/3 7607 (NICMOS Photometric Monitoring
Test)

The Near Infrared Camera (Cameras One and Two) was used to conduct a
photometric monitoring test by making observations of standard stars
P177D-Cal and P330E-Cal.  The standard stars (one solar analog and one
white dwarf) were observed with NIC1 & NIC2 at six different wavelengths
spanning the NICMOS wavelength range.  The observations were completed as
planned, and no anomalies were reported.

   1.6 Completed WF/PC-2 6906 (WF/PC-2 Cycle 6 Calibration: Internal
Monitor-Visual Flats)

       The WF/PC-2 was used to make internal calibration visual flat images
as part of the Cycle 6 internal monitoring of the instrument's operations.
This proposal defines the standard series of internal flat fields, which
will be executed twice per month.  The observations were completed as
planned, and no anomalies were reported.

   1.7 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-4450.  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.

   1.8 Completed Four Sets of NIC/1/2/3 7676 (NICMOS-One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
conduct an on-orbit calibration procedure.  This was none in parallel with
the prime science observations.  The procedure was completed as scheduled,
and no anomalies were noted.

   1.9 Completed WF/PC-2 6816 (The Small Scale Structure and Symmetries in
Proto-Planetary and Young Planetary Nebulae)

       The WF/PC-2 was used to make observations of HEN401 in order to
study its small scale structure and summetries.  Proto-planetary and young
planetary nebulae show a dazzling variety of non-spherical morphologies,
whereas the circumstellar envelopes of the AGB red giant stars, from which
they evolve, are mostly round.  The observations were executed as
scheduled, and no anomalies were noted.



   1.10 Completed Three Sets of STIS/CCD 7675 (STIS Non-Scripted Parallel
Archive Proposal)

       The Space Telescope Imaging Spectrograph (CCD) was used in the
parallel mode to obtain slitless spectroscopy with the G750L grism to
search for emission line galaxies at intermediate to high redshift.  There
was a guide star acquisition failure on FGS #3 to single star fine lock at
163/2140Z. HSTAR 6088 was written.  No other anomalies were reported.

1.11 Completed Two Sets of STIS/CCD 7700 (STIS Non-Scripted Parallel
Archive Proposal)

       The Space Telescope Imaging Telescope (CCD) was used to obtain
slitless spectroscopy with the G750L grism 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.

   1.12 Completed Two Sets of NIC/1/2/3 7701 (NICMOS Short One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two and Three) was used as
part of a short NICMOS one orbit parallel program, to obtain "JHK" imaging
of sky regions when another instrument is prime.  The observations were
completed as scheduled, and no anomalies were reported.

   1.13 Completed STIS/MA1 7086 (STIS22MB STIS Slit-to-Detector Internal
Stability - MAMA - Part 2)
;
       The Space Telescope Imaging Spectrograph (MA1) was used to make
slit-to-detector internal stability calibration observations.  This was to
determine the stability of the spectrograph to thermal variations in the
MAMA modes.  A dark calibration image was also taken.  The observations
were executed as scheduled, and no anomalies were noted.

   1.14 Completed Two Sets of NIC/1/2/3 7708 (NICMOS MULTIACCUM Dark
Characterization 6/8)

       The purpose of this proposal is to obtain group 6 of the on-orbit
darks for the MULTIACCUM predefined sequences requested by GOs, before the
start of Cycle 7.  The observations completed with no reported problems.

   1.15 Completed WF/PC-2 6785 (Ionized Gas Disks in Nearby Early Type
Galaxies)

       The WF/PC-2 was used to make observations of the nearby early-type
galaxy NGC-2640 in order to study its ionized gas disk surrounding its
nucleus.  Finding such disks could lead to the possibility of detecting the
gravitational effects of the supermassive black holes they orbit.  The
observations were executed as scheduled, and no anomalies were noted.

   1.16 Completed NIC/1/2 7319 (Composition and Heterogeneity of Io's
Volcanoes From Polarimetry of their Thermal Emission)

       The Near Infrared Camera (Cameras One and Two) was used to make
polarimetry observations of Jupiter's moon Io in order to study the
composition and heterogeneity of its thermal emissions.  Measurements were
taken of the linear polarization of Io's Mum volcanic thermal emissions
while the moon was in Jupiter's shadow in order to study the lava
composition and its variation among different hot spots on Io's surface.
The observations were completed as scheduled, and no anomalies were noted.

1.17 Completed WF/PC-2 6694 (High Resolution UV Imaging of M33-X8, the
Nuclear X-Ray Source in M-33)

       The WF/PC-2 was used to make ultraviolet observations of the galaxy
M-33 in order to study its X-ray (X-8) nuclear source.  The nucleus of M33
is known to contain the most luminous steady X-ray source in the Local
Group.  There was a guide star acquisition failure on FGS #3 to single star
fine lock at 163/2140Z. HSTAR 6088 was written.  No other anomalies were
noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 8
                                        Successful : 7

There was a guide star acquisition failure on FGS #3 to single star fine
lock at 163/2140Z. HSTAR 6088 was written
(See Observationsal Report 1.10 and 1.16).

                          Scheduled Reacquisitions : 5
                                        Successful : 5

   2.2 FHST Updates:

                              Scheduled : 17
                             Successful : 17

   2.3 Operations Notes:

       Battery #4 reconditioning continues.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science and SMOV operations.

/DMH