HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1868

PERIOD COVERED:  0000Z (UTC) 04/30/97 - 0000Z (UTC) 05/01/97

Daily Status Report as of 121/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two 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 Complete STIS/CCD 7151 (V2-V3 Aperture Verification)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the standard star GD153 in order to perform the V2-V3
aperture verification.  This calibration uses an isolated point source,
determines the position of the spectroscopic slit, and the position of the
target within the slit.  The observations were executed as scheduled, and
no anomalies were noted.

   1.3 Completed Two Sets of WF/PC-2 6909 (WF/PC-2 Cycle 6 Calibration:
Earth Flats

       The WF/PC-2 was used to make observations of the bright Earth to
obtain streak flats which are used to construct high quality flat fields
for the WF/PC-2 filter set.  The observations were executed as scheduled,
and no anomalies were noted.

   1.4 Completed Three Sets of 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.

   1.5 Completed NIC/1/2 7120 (IRC+10216: The Second Brightest Non-Solar
System Object in the IR Sky)

       The Near Infrared Cameras (Both Cameras 1 and 2) were used to make
observations of the object IRC+10216.  This object is the second brightest
non-solar system object in the infrared sky, second only to Eta-Carinae.
At 5 microns (its peak flux), it is so bright that most ground-based
infrared detectors are unable to image it.  A dark calibration image was
also taken.  The observations were completed as planned, and no anomalies
were reported.

   1.6 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
PG1209+093.  The purpose 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.

   1.7 Completed Two Sets of WF/PC-2 6346 (Snapshot Survey of the
Ultraluminous IRAS Galaxy Sample-Part 1 High)

       The WF/PC-2 was used to make snapshot survey observations of the
ultraluminous IRAS galaxies QDOTULIR10 and QDOTULIR04.  These data will be
searched for multiple cores, which imply a merger has occurred, and for
starburst regions.  The observations were executed as scheduled, and no
anomalies were noted.

   1.8 Completed FGS 6764 (Detection and Mass Determination of Low Mass
Companions)

       The FGSs were used in both the TRANS and POS modes to make
astrometric measurements of nearby, dwarf, M-class star GL791 in order to
measure the mass of its possible low mass companion.  The intent is to
improve the mass-luminosity relation for the cool end of the main sequence.
The observations were executed as scheduled, and no anomalies were noted.

   1.9 Completed WF/PC-2 6887 (A Photometric Search for Faint Companions to
Nearby Stars)

       The WF/PC-2 was used to make a photometric search observations of
the nearby star BD+4D3561 in order to look for possible companions.  The
technique involves use of the Planetary Camera with wide-band pass filters
to photometrically measure for the presence of resolved dark companions.
The observations were executed as scheduled, and no anomalies were noted.

   1.10 Completed WF/PC-2 6359 (Core Properties of the Bulges of Spiral
Galaxies)

       The WF/PC-2 was used to make snapshot survey observations of spiral
galaxy NGC-5806 in order to study its central bulge.  The aim is to
investigate the core properties, correlations with global galactic
properties, and the frequency of occurrence of multiple and/or miscentered
nuclei.  The observations were completed as scheduled, and no anomalies
were noted.

   1.11 Completed WF/PC-2 6101 (The Young Double Cluster NGC-1850 in the
Large Magellanic Cloud)

       The WF/PC-2 was used to make observations of the young double
cluster NGC-1850 which is located in the Large Magellanic Cloud.  Each
component is reported to have different ages, mass functions, and spatial
distributions.  The observations were completed as planned, and no
anomalies were reported.

   1.12 Completed NIC/1/2/3 7048 (NICMOS Parallel Thermal Background Test)

       The Near Infrared Cameras (Cameras One, Two and Three) were used to
make observations of an object designated as Target-1 in order execute
measurements of the stability of the HST thermal emissions.  The
observations were executed as scheduled, and no problems were reported.

    1.13 Completed WF/PC-2 6363 (The Environments and Host Galaxies of
BL-Lac Objects)

        The WF/PC-2 was used to make snapshot survey observations of BL-Lac
object MS4-1738+47in order to study its environment and its host galaxy.
The goal is to investigate systematic trends in host galaxy type, unusual
morphological features, nearby companion galaxies, etc.  The observations
were executed as scheduled, and no anomalies were noted.

   1.14 Completed STIS/CCD 7071 (CCD Target Centering)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of star GD153 in order to make calibration measurements to
center the image in the CCD.  The purpose of this proposal is to
demonstrate the ability of the STIS FSW to center (peakup on) an isolated
point source within a spectroscopic slit using the CCD detector.  A
wavelength calibration image was also taken.  The observations were
completed as scheduled, and no problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 6
                                        Successful : 6

   2.2 FHST Updates:

                              Scheduled : 22
                             Successful : 22

   2.3 Operations Notes:

       No significant operational problems were encountered.

       STIS enable flag 10 was set to enable Port #2 at 120/2054Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science and SMOV operations.

/DMH