HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1705

PERIOD COVERED:  0000Z (UTC) 08/26/96 - 0000Z (UTC) 08/27/96

Daily Status Report as of 240/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FGS 6920 (Monitor the Long-Term Stability of FGS #3)

       FGS #3 was used in the POS mode to make observations of reference =
star OF975 (which is located in cluster M-35) and several other reference =
stars in order monitor the long-term internal stability of the FGSs.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.2 Completed Three 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.=


   1.3 Completed GHRS/1/2 6418 (Small-Scale ISM Structure: The Remarkable =
Sightline Toward MU Cru.)

       The High Resolution Spectrograph (Sides One and Two) was used in =
the echelle mode to make spectrographic observations of the binary star =
Mu-Cru (aka, HD112091).  These observations were made to study the small =
scale structure of the inter-stellar medium which lies in the =
line-of-sight to this star.  These observations will provide information =
on the small scale variations that appear to be present in the =
interstellar medium.  One of the re-acquisitions for this proposal was =
unsuccessful (and reported in yesterday's report), and the take data flag =
went down.  The effects on the proposal have not been reported.  HSTAR =
5697 was written.  The observations were completed as planned, and no =
problems were reported.

   1.4 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.

   1.5 Completed Two Sets of 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 objects Q0328-466 and Q1414+477.  This is to determine =
if these high redshifted objects have a far ultraviolet flux.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.6 Completed GHRS/1/2 6594 (White Dwarf Companions of Barium and CH =
Peculiar Stars)

       The High Resolution Spectrograph (Sides One and Two ) were used to =
attempt to make spectrographic observations of the white dwarf of the =
Barium and CH Peculiar class star HD163993.  This will test the theory =
that abundance anomalies in this star are caused by mass transfer from =
the precursor of the white dwarf.  The observations were executed as =
scheduled, and no anomalies were noted.

   1.7 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) RXJ0515+01 (aka, 4 Rosa).  =
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.

   1.8 Completed GHRS/1 6088 (Ultraviolet Tomography of the Chromosphere =
of the K2 Dwarf in V471 Tau)

       The High Resolution Spectrograph (Side One) was used to make rapid =
mode ultraviolet tomographic observations of a K2 class binary dwarf star =
and its eclipsing binary white dwarf companion which are located in the =
cluster V471-Tau in order to study its chromosphere.  The observations =
were completed as planned, and no anomalies were reported.

   1.9 Completed WF/PC-2 6693 (Curcumstellar Nebulae as Fossil Records of =
the Mass Loss History)

       The WF/PC-2 was used to make images of the curcumstellar nebula =
surrounding the luminous blue variable star HR-Carinae in order to study =
the fossil records of its mass loss history.  The observations were =
completed as scheduled and no anomalies were reported.

   1.10 Completed GHRS/2 6172 (CRIMP2: Cycle 5 Condensed-Regimen =
Integrated Monitoring Program)

       The High Resolution Spectrograph (Side Two) was used  to obtain =
darks, internal flats (in photoscan mode), wavelength calibrations and =
observations of standard star BD+28D4211.  This includes detector =
calibration, sensitivity monitoring, and wavelength monitoring.  The =
observations were executed as scheduled, and no anomalies were noted. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 12
                                        Successful : 12

                          Scheduled Reacquisitions : 03
                                        Successful : 03

   2.2 FHST Updates: 

                              Scheduled : 30
                             Successful : 30

   2.3 Operations Notes: 

       The ephemeris loads were not uplinked as scheduled today when load =
checking revealed that the HST ephemeris had an accuracy failure.  HSTAR =
5698 was written.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH