HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1647

PERIOD COVERED:  0000Z (UTC) 06/03/96 - 0000Z (UTC) 06/04/96

Daily Status Report as of 156/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of WF/PC-2 6363 (The Environments and Host =
Galaxies of BL-Lac Objects)

       The WF/PC-2 was used to make snapshot survey observations of =
BL-Lac objects MS2336.5+0 and S5-0719+71 in order to study their =
environment and their host galaxies.  The goal is to investigate systemati=
c trends in host galaxy type, unusual morphological features, nearby =
companion galaxies, etc.  The observations were executed as scheduled, =
and no anomalies were noted.

   1.2 Completed Two 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.

   1.3 Completed WF/PC-2 6785 (Ionized Gas Disks in Nearby Early Type =
Galaxies)

       The WF/PC-2 was used to make observations of the nearby early type =
galaxy NGC-5084 in order to study its ionized gas disk surrounding its =
nucleus.  Finding such disks could lead to the possibility of detecting =
the gravitational effects of the supermassive black holes they orbit.  =
The observations were executed as scheduled, and no anomalies were noted.

   1.4 Completed WF/PC-2 6187 (WF/PC-2 Cycle 5 Calibration: Earth Flat)

       The WF/PC-2 was used to make Earth streak flat calibration images. =
 These streak flats will be used to produce flat fields, to map the OTA =
illumination pattern and, in combination with other data, to produce new =
superflats.  The observations were completed as planned, and no problems =
were reported.

   1.5 Completed FGS 6262 (High Speed Astrometry - Barnard's Star)

       The Fine Guidance Sensors were used to make high speed astrometric =
observations of Barnard's Star and seven reference stars.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.6 Completed 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.

   1.7 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 PKS1821+10 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. 

   1.8 Completed GHRS/2 5854 (Cepheid Masses)

       The High Resolution Spectrograph (Side Two) was used to make =
observations of the blue, main sequence companion of Cepheid star =
HD183344 to determine the mass of the system.  The orbital radial =
velocity will be measured to provide the mass ratio of the stars.  A =
wavelength calibration image was also taken.  The observations were =
executed as scheduled, and no anomalies were noted.

   1.9 Completed WF/PC-2 5917 (The Globular Clusters in the Fornax Dwarf =
- Physical Parameters)

       The WF/PC-2 was used to search for globular clusters in dwarf =
galaxy Fornax-023 which is a member of the Fornax Galactic Cluster.  The =
cluster ages, metal abundances, and radial profiles will be determined =
from the data.  Because the galaxies in the Fornax Cluster have different =
morphologies than those of the local group, the globular cluster systems =
are also expected to show differences.  The observations were executed as =
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 3
                                        Successful : 3

                          Scheduled Reacquisitions : 12
                                        Successful : 12

   2.2 FHST Updates: 

                              Scheduled : 5
                             Successful : 5

   2.3 Operations Notes: 

       HST operations personnel experienced a quiet operational day.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH