HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1694

PERIOD COVERED:  0000Z (UTC) 08/09/96 - 0000Z (UTC) 08/12/96

Daily Status Report as of 225/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/BL 6705 (Below the Lyman Edge: VU Polarimetry of =
Quasars)

       The Faint Object Spectrograph (Blue Side) was used to make =
spectrographic polarization observations below the Lyman edge of the =
bright quasar 1522+101. The observations were completed as planned, and =
no problems were reported.

   1.2 Completed WF/PC-2 6905 (WF/PC-2 Cycle 6 Calibration: Internal =
Monitor)

       The WF/PC-2 was used to make several internal calibrations =
observations including biases and internal flats as part of a Cycle 6 =
calibrations procedure. A variety of internal exposures are run weekly to =
verify and monitor the health of the camera. The observations were =
executed as scheduled, and no anomalies were noted.

   1.3 Completed Three 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.

   1.4 Completed GHRS/1/2 6415 (Thermal Pressures of the Local =
Interstellar Medium)
'
       The High Resolution Spectrograph (Sides One and Two) were used to =
make observations of the star HD133955 in order to study the thermal =
pressure of the interstellar medium which lies in the line of sight to =
that star. The observations were completed as scheduled, and no anomalies =
were reported.

   1.5 Completed GHRS/2 6534 (Be-Deficient Halo Stars: Implications For =
Galactic Chemical Evolution)

The High Resolution Spectrograph (Side Two) was used to make observations =
of the beryllium deficient halo star HD221377 to help study the galactic =
chemical evolution. The objective is to measure the abundance of boron in =
this star, and compare this with the abundances of Be and Li. The =
observations were completed as planned, and no problems were reported.

   1.6 Completed Two Sets of GHRS/2 6078 (The Wind Momentum-Luminosity =
Relationship for SMC A and B Supergiants.)

       The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of the O/B class stars AV393 and AV242 which =
are located in the Small Magellanic Cloud in order to measure the wind =
momentum-luminosity relationship in these low metallicity stars. This =
relationship is used to determine the distance to galaxies. The =
observations were completed as planned and no problems were reported.

   1.7 Completed FOS/RD 6762 (Ultraviolet Spectra of Uranian Satellites)

   The Faint Object Spectrograph (Red Side) was used to make ultraviolet =
reflective spectrographic observations of Uranus' moons Ariel, Oberon and =
Titania. Comparison with existing visual and near-inferred spectra will =
provide constraints on the non-ice components of the surfaces of these =
satellites. The primary guide star acquisition defaulted to fine lock =
back-up at 222/2049Z due to FGS #3 stop Flag. No other anomalies were repo=
rted.

   1.8 Completed WF/PC-2 6218 (Io's Surface, Atmosphere, and Plasma =
Torus)

       The WF/PC-2 was used to make near ultraviolet observations of =
Jupiter's moon Io's plasma Torus to study structures which might no be =
visible in ground based observations. The observations were completed as =
planned, and no problems were reported.

   1.9 Completed WF/PC-2/ GHRS/1/ FOS/BL 6567 (Wind of Massive Stars in =
Nearby Galaxies)

       The WF/PC-2 , the High Resolution Spectrograph (Side One) and the =
Faint Object Spectrograph (Blues Side) were all used to make observations =
of hot stars (O/B class) in the local-group, irregular galaxy NGC-6833. =
Detailed studies of the hot stellar populations in galaxies outside the =
Milky Way provide very important tests of the theories of stellar winds =
and star formation and evolution. The observations were executed as =
scheduled and no anomalies were noted. 

   1.10 Completed FOS/RD 6616 (UV Spectroscopy of Nearby Powerful Radio =
Galaxies)

       The Faint Object Spectrograph (Red side) was used to make =
ultraviolet spectrographic observations of the powerful, nearby (i.e., =
low redshift), radio galaxy 3C327. This is to test the validity of the =
unification model of powerful radio-loud AGNs. Also, it will help =
understand the origin of the scattered radiation and the nature of the =
scattered particles. The primary guide star acquisition resulted in FGS =
#1 back-up at 223/2218Z. No other problems were reported. 

   1.11 Completed WF/PC-2 6366 (The Early Onset of Asymmetric Outflow =
During the Planetary Nebula formation)

      The WF/PC-2 was used to make observations of the planetary nebula =
associated with star HD179821 in order to study its asymmetric outflow =
during its formation. The purpose of these exposures was to determine the =
characteristics of the mass loss that occurs as a star leaves the =
asymptotic giant branch. The observations were completed as planned, and =
no problems were reported.

   1.12 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 ESO97G13 in order to study its central bulge. The aim is to =
investigate the core properties, correlation's 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.

   1.13 Completed Two Sets of WF/PC-2 6365 (A Snapshot survey For =
Companions and Clusters around Wolf-Rayet Stars)

The WF/PC-2 was used to make snapshot observations of Wolf-Rayet star =
WR70 in order to look for companion stars and clusters. Photometry was =
performed on the Wolf-Rayet star and associated stars. The primary guide =
star acquisition repeated loss-of-lock at 224/1743Z. FGS #3 achieved and =
lost course track three times before achieving fine lock at 1754Z, which =
was too late to have TDF up for the WF/PC-2 observations 95 thru 97. The =
observations were completed as planned, and no anomalies were reported.

    1.14 Completed WF/PC-2 6119 (Snapshot Survey for Companions of =
Planetary Nebula Nuclei)

       The WF/PC-2 was used to make snapshot survey observations of =
planetary nebulae HE2-138 to study their nuclei and to look for possible =
companions. The observations were executed as scheduled, and no anomalies =
were noted.

   1.15 Completed WF/PC-2 6353 (A Snapshot Emission Line Imaging Survey =
of Very Low Excitation Planetary Nebulas)

       The WF/PC-2 was used to make snapshot observations as part to an =
emission line survey of the very low excitation planetary nebula =
PK315+09D1 (Class PNe). This target was selected based on the O III/H =
alpha line flux ratio. The observations were executed as scheduled, and =
no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 19
                                        Successful : 19

                          Scheduled Reacquisitions : 25
                                        Successful : 25

       Primary guide star acquisition defaulted to fine lock back-up at =
222/2049Z due to FGS #3 stop flag (See item 1.7)

       Primary guide star acquisition resulted in FGS #1 back-up at =
223/2218Z (See item 1.10).

       Primary guide star acquisition repeated loss-of-lock at 224/1743Z =
FGS #3 achieved and lost course track three times before achieving fine =
lock at 1754Z, which was too late to have TDF up for the WF/PC-2 =
observations 95 thru 97. (See item 1.13)

   2.2 FHST Updates: 

                              Scheduled : 37
                             Successful : 36

   2.3 Operations Notes: 

       DMS procedure testing was conducted in the VEST/SEER from midnight =
through 8AM. 

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH