HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1704

PERIOD COVERED:  0000Z (UTC) 08/23/96 - 0000Z (UTC) 08/26/96

Daily Status Report as of 239/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/BL 6476 (A Study of Curcumstellar Material Formed in =
a Hydrogen-Deficient Environment)

       The Faint Object Spectrograph (Blue Side) was used to make low =
resolution ultraviolet spectral observations of the hot variable CrB-type =
star V348-SGR in order to study the curcumstellar material formed in its =
hydrogern-defecient environment.  The objective is to study the newly =
formed dust associated with the brightness changes.  The observations =
were completed as planned, and no problems were reported.

   1.2 Completed FOS/BL 6611 (A Group or Cluster of Lyman-Alpha Absorbing =
Galaxies at Z ~ 0.26)

       The Faint Object Spectrograph (Blue Side) was used to make =
Lyman-Alpha spectrographic observations of several galaxies (i.e., a =
small cluster) located in the line of sight to radio galaxy/QSO 3C323.1  =
These data will provide more information on the nature and origin of the =
gas in clusters of galaxies.  The observations were executed as =
scheduled, and no anomalies were noted.

   1.3 Completed Two Sets of WF/PC-2 6903 (WF/PC-2 Cycle 6 Calibration: =
Decontamination)

       The WF/PC-2 was used to make several calibration bias =
observations, internal flats, K-Spot images and dark calibration images =
which are all part of a Cycle 6 decontamination procedure.  No science was=
 interleaved with the dark exposures.  The observations were completed as =
scheduled, and no problems were reported.

   1.4 Completed FOS/BL 6528 (PG 1416-129: The Only X-ray Bright QSO, or =
Missing Link?)

       The Faint Object Spectrograph (Blue Side) was used to make =
ultraviolet spectrographic observations of the QSO PG1416-129 to =
determine if the QSO has broad emission lines.  This QSO is one of a few =
known x-ray bright quasi-stellar objects.  The observations were =
completed as planned and no problems were reported. 

   1.5 Completed FOS/RD 6595 (Does Pluto Have a Haze Layer?)

       The Faint Object Spectrograph (Red Side) was used to make =
spectrographic observations of the planet Pluto in order to determine if =
the planet has a haze layer.  These observations were made during a =
series of stellar occultations.  The objective is to study the physical =
structure of the atmosphere at kilometer-level spatial resolution.  The =
observations were executed as scheduled, and no anomalies were noted. 

   1.6 Completed Two Sets of GHRS/2 6213 (GHRS Aperture Offsets- Cycle 5)

       The High Resolution Spectrograph (Side Two) was used to make =
calibration images of the star HD141556 in order to determine the offsets =
of the instruments focal plain apertures.  The purpose of this =
calibration program is to measure the relative wavelength offsets between =
the large science aperture and the small science aperture with various =
gratings.  A wavelength calibration image was also taken.  The =
observations were completed as scheduled, and no anomalies were reported.

   1.7 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 Q0308+190.  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.

   1.8 Completed GHRS/1/2 6485 (GHRS Observations of NGC-5548)

       The High Resolution Spectrograph (Both Sides One and Two) was used =
to make observations of the X-Ray/ultraviolet ionized absorber in object =
NGC-5548 to determine its velocity structure.  The absorption is believed =
to be due to several components, and the observers will be looking for C =
IV absorption lines superimposed upon C IV emission line features.  The =
observations were completed as scheduled, and no anomalies were reported. =


   1.9 Completed Two Sets of WF/PC-2 6361 (High Resolution Imaging of =
X-Ray Selected AGNs)

       The WF/PC-2 was used to make high resolution  observations of the =
known low red shifted x-ray active galactic nucleus (AGN) MS1408.1+2.  =
These data will allow a study of the optical properties of an unbiased =
sample of an AGN host galaxy.  The observations were completed as schedule=
d, and no problems were reported.

   1.10 Completed FOS/RD 6577 (An Expanded Survey for Study of the =
Lyman-Alpha Line and QSO Mg II Absorption)

       The Faint Object Spectrograph (Red Side) was used to make =
observations of the QSO B20141+33 in order to make a survey of the =
Lyman-Alpha line and the 68 Mg II absorption line system.  The =
observations were completed as scheduled, and no problems were reported. 

   1.11 Completed WF/PC-2 6344 (Low Mass Binaries in the Hyades - =
Completing the Survey)

       The WF/PC-2 was used to make observations of the low mass binary =
stars RHY298 and RHY046 (M-Class Dwarf Stars) which are located in the =
Hyades Cluster.  The observations were executed as scheduled, and no =
anomalies were noted.

   1.12 Completed FOS/BL 6498 (Accretion Streams in Magnetic Variables: =
FOS Eclipse of 4 Rosa)

       The Faint Object Spectrograph (Blue Side) was used to make rapid =
mode spectrographic observations of the accretion streams in the magnetic =
variable star (i.e., Cataclysmic variable) RXJ0505+01.  This is a binary =
system, and it contains a white dwarf star, an accretion disk, a mass =
stream, and a hot spot where the mass stream hits the disk and a =
companion star.       The observations were completed as planned and no =
anomalies were reported.

   1.13 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 HD160617 to help study t=
he 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.

   1.14 Completed GHRS/2 6541 (Interstellar Cadmium: Probing Galactic =
Chemical Evolution)

       The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of the O/B class star HD38771 in order to =
probe interstellar Cadmium and study the galactic chemical evolution.  =
The observations were completed as planned, and no problems were =
reported.

   1.15 Completed 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 CL-ULIR232 and IR22204-02.  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.

   1.16 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 Q1433+312.  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.

   1.17 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 3C321.  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 observations were completed as planned, and no =
problems were reported. 

   1.18 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 PG1402+261.  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.

   1.19 Completed FOS/RD 7204 (Pre-Perihelion Observations of the =
International Rosetta Mission Target)

       The Faint Object Spectrograph (Red Side) was used to make =
pre-perihelion, ultraviolet, spectrographic observations Comet Wirtanen =
(aka, comet 46/P) as part of a target viewing for the International =
Rosetta Mission which is scheduled to be launched in the year 2003.  The =
observations were completed as planned, and no anomalies were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 30
                                        Successful : 30


                          Scheduled Reacquisitions : 32
                                        Successful : 31

       The re-acquisition at 239/034849Z was unsuccessful and the take =
data flag went down.  This even is described in greater detail in HSTAR =
5697.

   2.2 FHST Updates: 

                              Scheduled : 37
                             Successful : 37

   2.3 Operations Notes: 

       A TTR was written to describe an unrecoverable  one-minute, =
32-second loss of 32K data due to weather-related problems at STGT.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH