HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1723

PERIOD COVERED:  0000Z (UTC) 09/20/96 - 0000Z (UTC) 09/23/96

Daily Status Report as of 267/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6537 (Black Holes in Kinamatically Decoupled =
Cores: A Study of IC4559)

       The WF/PC-2 was used to make images of the nuclear region of =
luminous, E3 Class, Elliptical galaxy IC1459 in order to study its the =
possible black hole in its dynamically decoupled cores.  The observations =
will be used to determine the morphology of the ionized gas.  The =
observations were executed as scheduled, and no anomalies were noted. 

   1.2 Completed 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.  As reported in HSTAR 5717, the FGS =
acquisition for this observation defaulted to fine lock backup on one FGS =
only.  Otherwise, the observations were executed as scheduled, and no =
further anomalies were noted.

   1.3 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) RJX0515+10.  This is a binary =
system, and it contains a white dwarf star, an accretion disk, a mass =
stream, and hot spot where the mass stream hits the disk and a companion =
star.  The observations were completed as planned and no anomalies were =
reported.

   1.4 Completed WF/PC-2 6935 (WF/PC-2 Cycle: Photometric Transformation)

       The WF/PC-2 was used to make observations of object NGC2100 in =
order to perform photometric transformations.  This is a series of =
observations that will be used to extend the WF/PC-2 photometric =
transformation to include the Stromger and Johnson-Cousins systems.  The =
observations were completed as planned and no problems were reported. 

   1.5 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 AV264 and AV478 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.

   1.6 Completed FOS/RD 6508 (Specially Resolved Spectroscopy of New =
Compact Multiple Systems )

       The Faint Object Spectrograph (Red Side) was used to make =
observations of star HD32228 and its nearby companions.  This star is in =
a compact cluster located in the Large Magellanic Cloud.  The =
observations were completed as scheduled, and no anomalies were reported. =


   1.7 Completed Two Sets of WF/PC-2 6253 (Pure Parallel Archive Program)

       The WF/PC-2 was used to execute a pure parallel program taking =
ultraviolet observations running concurrently with prime science =
observations.  The intent is to search for extra-galactic sources with =
flux excesses at 3000 A0 and galactic sources with excesses at 1600 A0.  =
The observations were completed as planned, and no problems were =
reported.

   1.8 Completed Two Sets of 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-986 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.

   1.9 Completed FOS/BL 6766 (Narrow Line Seyfert 1S and the Iron Enigma =
in Active Galaxies)

       The FOS (Blue Side) was used to make observations of the 1S class =
narrow lined Seyfert galaxy RXJ0134-42 in order to study its iron enigma. =
 These data should show correlations between its x-ray spectra, =
kinematics, and Fe II spectra.  The observations were completed as =
planned and no problems were reported

   1.10 Completed Two Sets of WF/PC-2 6802 (Cosmology With the Medium =
Deep Survey)

       The WF/PC-2 was used to make observations taken in parallel with =
the prime science observations as part of the Medium Deep Sky Survey.  =
The observations were executed as scheduled, and no problems were reported=
..

   1.11 Completed WF/PC-2 6341 (SN1978K: Probing the Shocked Ejecta)

       The WF/PC-2 was used to make observations of the shocked eject =
from the Super Nova in NGC-1313 which is located in the barred galaxy =
NGC-1313-03.  It is the only example of a very young remnant of known age =
which is x-ray bright.  Approximately four-and one-half hours into this =
eight-hour proposal, the three-minute, 11-second loss of lock mentioned =
in 2.1 occurred.  Otherwise, the observation were completed as planned, =
and no further problems were noted.

   1.12 Completed GHRS/2 6712 (The Gaseous Extent of Galaxies: How Far is =
Too Far?)

       The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of a quasar located in a field of galaxies in =
which proposers have carried out extensive redshift surveys.  A wave =
length calibration image was also taken.  The observations were completed =
as planned and no problems were noted. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 19
                                        Successful : 19

       As documented in HSTAR 5719, a loss of lock occurred at =
266/063730Z.  Automatic re-acquisition was initiated and the take data =
flag went back up at 266/064041Z.

                          Scheduled Reacquisitions : 22
                                        Successful : 22

   2.2 FHST Updates: 

                              Scheduled : 16
                             Successful : 16

   2.3 Operations Notes: 

       There were no significant operational problems reported.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH