HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1628

PERIOD COVERED:  0000Z (UTC) 05/06/96 - 0000Z (UTC) 05/07/96

Daily Status Report as of 128/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Five Sets of WF/PC-2 6188 (WF/PC-2 Cycle 5 Calibration: =
Dark)

       The WF/PC-2 was used to make internal dark calibration images.  =
The observations were completed as scheduled, and no problems were =
reported.

   1.2 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 PKS0521-36 in order to study its environment and its host =
galaxies.  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.

   1.3 Completed FOC/96 6416 (FOC Imaging of the Dusty Envelopes of =
Mass-Losing Supergiants)

       The Faint Object Camera (f/96) was used to make images of the =
dusty envelope surrounding the variable mass-losing supergiant star =
VY-Cam.  This is to define the role that mass loss plays in determining =
the fate of supernova (SN) progenitors and SN remnants.  Current stellar e=
volution theory indicates that all stars with masses larger than 10 solar =
masses will produce a SN.  The observations were executed as scheduled, =
and no anomalies were noted.

   1.4 Completed Four Sets of WF/PC-2 5971 (HST Medium Deep Survey)

       The WF/PC-2 was used to make long exposure, medium-deep sky survey =
observations at latitudes larger than 10 degrees taken in parallel with =
the prime science observations.  The observations were executed as =
scheduled, and no anomalies were noted.

   1.5 Completed Two Sets of WF/PC-2 6191 (WF/PC-2 Cycle 4 Calibration: =
UV Flats)

       The WF/PC-2 was used to take some ultraviolet calibrations flats =
using several different filters.  A dark calibration image was also taken =
to check for possible after images.  No problems were reported.

   1.6 Completed FOC/96 6349 (Snapshot search for High Redshift QSOs with =
Far-UV Flux)

       The Faint Object Camera (f/96) was used to make snapshot images of =
the quasi-stellar object Q0850+179.  This is to determine if this high =
redshifted object has a far ultraviolet flux.  The observations were =
executed as scheduled, and no anomalies were noted.

   1.7 Completed FOS/BL 6781 (Soft X-Rays and the UV Spectra of a =
Complete QSO Sample)

       The Faint Object Spectrograph (Blue Side) was used to obtain =
ultraviolet spectra of the low-Z quasi-stellar object PG0947+396.  The =
ionization continuum of this object has been studied using the ROSAT =
satellite.  The strengths and line profiles of strong and weak =
ultraviolet emission and absorption lines and the ultraviolet continuum =
were studied.  The observations were completed as planned and no =
anomalies were reported.

   1.8 Complete Two Sets of WF/PC-2 6481 (Vesta at Perihelion)

       The WF/PC-2 was used to make observations of the asteroid 4-Vesta =
while it is at perihelion opposition.  Several different filters were =
used as diagnostics of mineralogy and to maximize albedo contrasts.  The =
observations were completed as scheduled, and no anomalies were reported.

   1.9 Completed WF/PC-2 5924 (Nuclear Emission Line Region Associated =
with Compact Flat Spectrum)

       The WF/PC-2 was used to make spectrographic observations of the =
nuclear emission region of galaxy IC989 to study its compact flat =
spectrum.  There is evidence that this jet-produced AGN is powered by =
accretion disks feeding massive black hole.  The observations were =
executed as schedule, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 6
                                        Successful : 6

       As reported in HSTAR 5601, the acquisition at 128/0716Z failed to =
fine lock back-up on one FGS only.

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates: 

                              Scheduled : 21
                             Successful : 21

   2.3 Operations Notes: 

       There were no reported problems.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH