HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1528

PERIOD COVERED:  0000Z (UTC) 12/01/95 - 0000Z (UTC) 12/04/95

Daily Status Report as of 338/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6250 (WF/PC-2 Cycle 5 Calibration: Internal =
Monitor)

       The WF/PC-2 was used to make a series on internal calibration =
observations.  Internal flats, biases, and K-Spot calibration images were =
taken.  These observations are designed to monitor the health of the =
cameras.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.2 Completed FGS 6268 (The Parallax of NGC-6853)

       The FGSs were used to make astrometric observations in order =
measure the parallax to NGC-6853, one of the nearest planetary neabulae.  =
The observations were executed as planned, and no problems were reported.

   1.3 Completed Thirteen Sets of 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.

   1.4 Completed WF/PC-2 5957 (Snapshot of 3CR Radio Galaxies)

       The WF/PC-2 was used to make observations for radio galaxy 3C284.0 =
to study the morphology of the radio galaxy.  The observations were =
executed as scheduled, and no anomalies were noted.

   1.5 Completed Two Sets of WF/PC-2 5999 (The Nuclear Structure of S0 =
Galaxies: A PC Imaging Survey)

       The WF/PC-2 was used to make observations of S0 class galaxies =
ESO358-059 and NGC-4203 in order to study their nuclear structure.  This =
is a part of a large survey of S0, E/S0, and S0/a class galaxies.   The =
targets will cover a wide range in luminosity and environment. The =
observations were completed as planned, and no anomalies were noted.

   1.6 Completed Eleven Sets of FGS 6174 (Delta Mini-OFAD)

       The FGSs were used in the POS Mode to make astrometric observations =
for Delta Mini-OFAD OF980, OF964, OF964, OF607, et. al, plus several =
reference stars all of which are located in cluster M-35.  This is to =
calibrate the optical field angle distortion (OFAD).  These calibrations =
are needed to support astrometry with an error budget of +/-0.0027 =
arcseconds RMS.  During the third iteration of this proposal, a series of =
commanded telemetry format changes resulted in much of the data for this =
iteration to be lost.  HSTAR 5391 was written.  Otherwise, the remaining =
observations were executed as scheduled, and no further anomalies were =
noted.

   1.7 Completed WF/PC-2 5915 (Star Formation Histories of Dwarf Irregular =
Galaxies)

       The WF/PC-2 was used to make BVI observations for the isolated =
dwarf irregular galaxy DD075 (class dI) which is located in the local =
group in order to study its star formation history.  This data will be =
used to create color-magnitude and color-color diagrams and maps of =
Population I and II stars.  The observations were executed as planned, and =
no problems were reported.

   1.8 Completed COSTAR/U and FOC/96 6162 (FOC Cycle 5 PSF Monitoring)

       The Faint Object Camera (f/96) was used to make observations of the =
standard star BPM16274 and to monitor the point spread function of the =
COSTAR optical system.  The observations were completed as scheduled, and =
no anomalies were noted.

   1.9 Completed Two Sets of 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.

   1.10 Completed WF/PC-2 6095 (Hot Stellar Populations in Globular =
Cluster Cores)

       The WF/PC-2 was used to make observations of globular cluster =
NGC-2808 to study the radial gradients of the hot stellar population in =
its core region.  Observations were made in the blue, violet and far =
ultraviolet.  The observations were completed as planned, and no problems
were reported.

   1.11 Completed WF/PC-2 5845 (Polarization of Disks around T-Tauri)

       The PC and polarization filter POLQ were used to image the =
nebulosity surrounding the T Tauri star HL-Tau.  These data will test =
various models for scattered light from central sources.  Systematic =
errors will be avoided by using one polarizer and allowing the spacescaft =
roll to provide the rotation by observing the target three times at 120 =
day intervals.  The observations were executed as scheduled, and no =
problems were reported.

   1.12 Completed WF/PC-2 6003 (The Evolution of Elliptical Galaxies in =
distant Clusters)

       The WF/PC-2 was used to make observations of elliptical galaxies in =
distant galactic cluster Abell-370 to study the evolution of the structure =
of these elliptical galaxies.  The observations were completed as planned, =
and no problems were reported.

   1.13 Completed WF/PC-2 5972 (Determination of the Extragalactic =
Distance Scale)

       The WF/PC-2 was used to make observations of the galaxies NGC-2541 =
and NGC-3198 looking for standard candle Cepheid variable stars.  The =
purpose of this observations is to help estimate the Hubble constant with =
an accuracy of 10%.  The observations were executed as scheduled, and no =
anomalies were noted.

   1.14 Completed WF/PC-2 5969 (Large Population Studies of Globular =
Clusters)

       The WF/PC-2 was used to make observations of the very metal poor =
globular cluster NGC-6341 (aka, M-92) for large population studies.  The =
data are for a long term study whose goal is to obtain very accurate =
photometric data of all the post main-sequence (PMS) stars in prototype =
galactic globular clusters.  The observations were executed as scheduled, =
and no anomalies were reported.

   1.15 Completed FOS/RD 6167 (FOS Cycle 5: Dark Monitoring)

       The Faint Object Spectrograph (Red Side) was used to make several =
dark calibration images.  All exposures were internals.  All spectra was =
done in the image mode.  The observations were completed as planned, and =
no problems were reported.

   1.16 Completed FOS/RD/BL 6043 (The Interaction of Supernovae with their =
Curcumstellar medium)

       The Faint Object Spectrograph (Both Red and Blue Sides) was used to =
make ultraviolet observations of Type 3 supernova remnant SN1980K to study =
its interaction with the curcumstellar medium and the supernova blast =
wave, which itself is a product of the stellar wind from the supernova =
progenitor.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.17 Completed WF/PC-2 5971 (HST Medium Deep Survey)

       The WF/PC-2 was used to make a long exposure, medium deep sky =
survey observations at latitudes larger than 10 degrees taken in parallel =
with the prime science observations.  The observations were executed as =
scheduled, and no anomalies were noted.

   1.18 Completed WF/PC-2 5988 (Imaging Quasars in Rich Clusters)

       The WF/PC-2 was used to make observations of radio quasar 3C215 =
which is located in a rich galactic cluster.  There is evidence that =
quasars in rich clusters of galaxies evolve more quickly than quasars in =
poor environments.  The observations were completed as planned, and no =
problems were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 21
                                        Successful : 21

       At 338/032856Z and at 338/084050Z, there were losses
       of lock during Proposal FOS/BL 5843.  HSTARs 5393 and
       5394 were written to document these events.

                          Scheduled Reacquisitions : 21
                                        Successful : 21

   2.2 FHST Updates: 

                              Scheduled : 34
                             Successful : 34

   2.3 Operations Notes: 

       Beginning at 335/075702Z, a series of telemetry format changes were =
commanded while an astrometry observation was in progress.  Much of the =
data for this observation was lost as a result.  HSTAR 5391 was written.

       During STGT operations, at 335/1336Z, there was a two minute, 36 =
second data dropout.  The data was recoverable.  A TTR was written.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH