HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1891

PERIOD COVERED:  0000Z (UTC) 06/03/97 - 0000Z (UTC) 06/04/97

Daily Status Report as of 155/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed 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.

   1.2 Completed Two 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.  The
observations were completed as planned, and no anomalies were reported.

   1.3 Completed Two Sets of STIS/MA2 7093 (Dark Measurement for MAMA Bands
1 and 2)

       The Space Telescope Imaging Spectrograph (MA2) was used to make dark
calibration observations of the MAMA Bands 1 and 2.  These observations are
to be used to establish that the detectors are performing nominally, that
no internal movement of the MCP has taken place, and to establish the dark
level in orbit for a given operating temperature.  The observations were
completed as planned, and no anomalies were reported.

   1.4 Completed NIC/1 7225 (Proper Motion of Stars Near SGR-A*)

       The Near Infrared Camera (Camera One) was used to make astrometric
proper motion observations of stars in the vicinity of Sagittarius-A.
Sagitarius-A may be a black hole with a mass close to a million solar
masses.  The observations were completed as planned, and no anomalies were
reported.

   1.5 Completed WF/PC-2 7588 (Measuring Q0 With Type IA Supernovae)

       The WF/PC-2 was used to make observations of supernova SN1997A3 in
order to measure the Q0 parameter.  This is to produce a precise Hubble
diagram which can be used to measure the cosmic deceleration and global
curvature of the universe.  HST can make an essential contribution by
providing photometry with substantially higher precision and better
temporal coverage than can be obtained from the ground.  The observations
were executed as scheduled, and no anomalies were noted.

   1.6 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.

   1.7 Completed 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 instruments prime.  The observations were
completed as scheduled, and no anomalies were reported.

   1.8 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.

   1.9 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-5557 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.

   1.10 Completed WF/PC-2 6626 (Imaging of Z>1 - Massive Star Forming Galaxies)

       The WF/PC-2 was used to make observations of the massive star
forming galaxy SSA13A which is known to have a redshift of Z>1.0.  The
central regions of the galactic strips have already been imaged with HST
and the current observations are to cover the samples required to finish
the set.  The observations were executed as scheduled, and no anomalies
were noted.

   1.11 Completed STIS/CCD 7036 (NICMOS SAA Contour Test)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of an object as the spacecraft passed through the South
Atlantic Anomaly (SSA) in order to obtain data to plot the contour plot of
the radiation effects.  This test is to determine optimal SAA limits for
detector operations, and to determine orbital radiation effects on the
NICMOS dark current when coming out of the SAA.  A waveline calibration
image was also taken.  The observations were completed as scheduled, and no
anomalies were reported.

   1.12 Completed WF/PC-2 6868 (Super Flat Galactic Disks)

       The WF/PC-2 was used to make observations of the super flat disk on
late type galaxy UGC-7321 which is located in our local super cluster.
These data will be suitable for studies of the structures of the disks as
well as properties of disk components, such as dark nebulae and star
clusters.  The observations were completed as planned, and no anomalies
were reported.

   1.13 Completed STIS/MA1 7144 (STIS Thermal Stability Test of MAMAS Due
to MAMA LVPSS Cycling)

       The Space Telescope Imaging Spectrograph (MA1) was used to determine
the stability of the spectrograph to thermal variations in the MAMA modes
due to MAMA LVPS cycling.  A continuous wavecal series of exposures were
taken interspersed with dark exposures to gain insight on background as a
function of magnetic latitude.  The observations were executed as
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 10
                             Successful : 9

       The update scheduled at 155/0358Z failed.

   2.3 Operations Notes:

       The SSR interrupt log was dumped at 154/2146Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science and SMOV operations.

/DMH