HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1793

PERIOD COVERED:  0000Z (UTC) 01/10/97 - 0000Z (UTC) 01/13/97

Daily Status Report as of 013/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6806 (Observations of Saturn's Rings)

       The WF/PC-2 was used to make observations of the east side of =
Saturn's ring system in order to study composition of the ring material =
and to determine the "filling factor" of the rings.  The observations =
were executed as scheduled, and no anomalies were noted.

   1.2 Completed GHRS/2 6599 (Boron in Halo Giants: A Solution to the D+3 =
He Crisis in Big Bang Nucleus)

       The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of the boron abundances of giant halo star =
HD18907.  Comparison of the abundances among other stars of the same type =
will allow the investigator to determine whether mass loss or mixing =
causes the low Carbon-12/ Carbon-13 ratios seen in these type stars.  As =
documented in HSTAR 5872, the acquisition for this proposal (at =
010/0325Z) failed to fine lock on FGS #1 only.  Othewise, the =
observations were executed as scheduled, and no effects on science were =
reported. 

   1.3 Completed 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 nuclius (AGN) MS0007.1-0.  =
These data will allow a study of the optical properties of an unbiased =
sample of AGN host galaxies.  The observations were completed as =
scheduled, and no problems were reported.

   1.4 Completed FOS/BL 6892 (Globular Cluster Core Structure and =
Dynamics (FOS 36) - Part 2)

       The Faint Object Spectrograph (Blue Side) was used to make =
ultraviolet spectrographic observations of the globular cluster NGC-1851 =
in order to study its stellar population, core structure and dynamics.  =
The observations were executed as scheduled, and no anomalies were noted.

   1.5 Completed Four 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 flu=
x excesses at 3000 A0 and galactic sources with excesses at 1600 A0.  The =
observations were completed as planned, and no problems were reported.

   1.6 Completed FGS 6479 (Masses of Low Luminosity Hyades Cluster =
Members)

       The FGSs were used to make astrometric observations of low =
luminosity star VA351 which is a member to the Hyades Cluster.  This =
cluster, owing to its nearness, richness, and young age, occupies a =
pivotal role in the studies of star formation and stellar populations.  =
The observations were executed as planned, and no anomalies were =
reported. 

   1.7 Completed Two Sets of FOS/BL 5515 (Eclipse Mapping of the =
Touchstone Systems CM-Dra Cycle 4 Medium)

       The Faint Object Spectrograph (Blue Side) was used in the rapid =
mode to make observations of the Touchstone System CM-Draconis (aka, =
GL630.1) to do eclipse mapping.  The objective is to map the upper =
atmosphere of the M4Ve class component of CM Dra by measuring the =
disappearance of light during the eclipse of the secondary.  The observati=
ons were completed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 6653 (Kinematics of Ionized Gas in the Dusty =
Nuclear Disk in NGC-6251)

       The WF/PC-2 was used to make observations of the dusty nuclear =
disk and nuclear region of galaxy NGC-6251 in order to study the =
kinematics of its ionized gas.  The data will be used to study the =
morphology and dynamics of the ionized gas in the nuclear disk.  The =
observations were completed as planned, and no problems were reported.

   1.9 Completed Three Sets of WF/PC-2 6908 (WF/PC-2 Cycle 6 Cal: UV =
Flat)

       The WF/PC-2 was used to make ultraviolet flats and dark =
calibration images as part of a Cycle 6 Calibration Plan.  The =
observations were executed as planned, and no anomalies were reported. 

   1.10 Completed Three Sets of WF/PC-2 6610 (WF/PC-2 Lyman-Alpha Imaging =
of Galaxy cluster at Z =3D 2.4)

       The WF/PC-2 was used to make observations of an apparent blank =
field-of-view hoping to make Lyman-Alpha observations of faint galaxies =
located at a distance of Z =3D 2.4.  Earlier exposures revealed many =
compact Lyman-Alpha emitters at this distance.  These observations were =
executed in parallel with the prime science observations.  The =
observations were completed as planned, and no problems were reported. 

   1.11 Completed WF/PC-2 7211 (WF/PC-2 Pre-SM97 UV Baseline =
Observation.)

       The WF/PC-2 was used to make far-ultraviolet observations of CVZ =
Class target WD0134+833 as part of a pre-observation baseline of SM97 =
(WF/PC-2 SMOV Calibration).  The observations were completed as =
scheduled, and no anomalies were noted.

   1.12 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 galaxy QDOTULIR04.  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.

   1.13 Completed FOS/48 6304 (Long Slit Spectroscopy of the Nuclear =
Region of a Sample Nearby Radio Galaxies)

       The Faint Object Camera (f/48) will be used to make long-slit =
spectra of the nuclear region of the nearby Seyfert radio galaxy =
PKS2158-38.  The objective is to study the interaction of the galaxy's =
radio jet with the interstellar medium.   An internal flat and a dark =
calibration image were also taken.  The observations were executed as =
scheduled, and no anomalies were noted.

   1.14 Completed WF/P-2 6254 (GTO Pure Parallel Program - Cycle 5)

       The WF/PC-2 was use to make random long exposures of high galactic =
fields taken in parallel with the prime science observations to obtain a =
random sample of galaxies.  The observations were executed as scheduled, =
and no anomalies were noted.

   1.15 Completed FOS/BL 6918 (FOS Cycle 6: Internal/External Offset)

       The Faint Object Spectrograph (Blue Side) was used to make =
observations of standard object NGC-6833 in order to make internal and =
external calibration measurements.  Offsets between internal and external =
wavelength scales were measured for several different gratings.  The =
observations were executed as scheduled, and no anomalies were noted. 

   1.16 Completed 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.

   1.17 Completed GHRS/2 6593 (Origin and Physical Conditions in the =
Local Lyman-Alpha Forest)

       The High Resolution Spectrograph (Side Two) was used to make high =
resolution spectral observations of active galactic nuclei of MARK817 in =
order to study the origin and physical conditions of the local =
Lyman-Alpha forest cloud which lies in the foreground of the quasar.  The =
study of these data should provide a better understanding of the origin =
and physical conditions in this cloud and its relationship, if any, to =
near by galaxies.  The observations were completed as planned and no =
anomalies were reported.

   1.18 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 B19 in order to make a survey of the Lyman-Alpha =
line and the 68 Mg II absorption line system.  The guide star acquisition =
for this proposal faioled to obtain fine lock, and defaulted to SSM =
control.  HSTAR 5873 was written.  Otherwise, the observations completed =
as scheduled, and no further problems were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 20
                                        Successful : 18

       Per HSTAR 5872, the acquisition at 010/0325Z failed to fine lock =
back-up on FGS #1.

       At 012/2158Z, FGSs #1 and #3 failed to acquire lock.  HSTAR 5873 =
was written.

       The dual acquisitions which began at 013/0703Z failed to SSM contro=
l for the first, and control on FGS #1 only for the second.  HSTAR 5875 =
was written.

                          Scheduled Reacquisitions : 25
                                        Successful : 25


   2.2 FHST Updates: 

                              Scheduled : 25
                             Successful : 25

   2.3 Operations Notes: 

       Upon the conclusion of SM2 JIS #5, HST operations returned to the =
MOR at approximately 010/2300Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH