HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1482

PERIOD COVERED:  0000Z (UTC) 09/22/95 - 0000Z (UTC) 09/25/95

Daily Status Report as of 268/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed GHRS/1 5866 (NLTE Spectral Analysis of PG1159 Type Stars)

       The High Resolution Spectrograph (Side One) was used to make a NLTE
spectrographic analysis of STAR-1520 to study the GW Vir instability strip
and the photospheric parameters and composition.  The observations were
completed as planned, and no problems were reported.

  1.2 Completed Two Sets of WF/PC-2 6183 (WF/PC-2 Cycle 5 Calibration: Decon)

   The WF/PC-2 was used to make some internal flat, K-Spot, and dark
calibration images.  The purpose is to define decontamination procedures to
be run during Cycle 5.  The calibration observations were completed as
scheduled, and no anomalies were reported.

   1.3 Completed GHRS/2 6065 (ZAMS Atmospheric Structure as a Function of
Rotation)

       The High Resolution Spectrograph (Side Two) was used to make emission
line spectrographic observations of the zero-age main sequence (ZAMS) star
HD220140 in order to study its atmospheric structure as a function of
rotation.  Wavelength calibrations, internal flats, and dark calibration
images were also taken.  The observations were executed as scheduled, and no
anomalies were noted.

   1.4 Completed Five Sets of FOS/BL 6166 (FOS Cycle 5: Location of Spectra
and Wavelength Calibration)

       The Faint Object Spectrograph (Blue Side) was used to make wavelength
calibration images to measure the stability of the FOS Blue Side wavelength
scale and spectral locations.  A Taled calibration observations was also
taken.  The observations were completed as planned, and no anomalies were
reported.

   1.5 Completed Two Sets of FOC/96 6013 (Mapping the UV Surface albedo
Distribution of Triton)

       The Faint Object Camera (f/96) was used to make ultraviolet and
visible observations of the moon Triton in order to map its surface albedo
distribution.  The objectives are to place compositional constraints on
Triton's surface, provide a baseline for future searches for seasonal
changes, enhance the value of FOS spectroscopy of Triton, and to build
confidence in the FOC's ability to generate albedo maps through a comparison
of HST and Voyager imaging of Triton.  The observations were executed as
scheduled, and no anomalies were noted.

   1.6 Completed Two Sets of WF/PC-2 6119 (Snapshot Survey for Companions of
Planetary Nebula Nuclei)

       The WF/PC-2 was used to make snapshot survey observations of planetary
nebulae IC4637, A28, IC418 and TH2-A to study their nuclei and to look for
possible companions.  The observations were executed as scheduled, and no
anomalies were noted.

   1.7 Completed WF/PC-2 6192 (CTE Calibration)

       The WF/PC-2 was used to make observations of the globular cluster
Omega-Cent in order to conduct a Charge Transfer Efficiency (CTE)
calibration.  An internal flat calibration image was also taken.  The
observations were completed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 6223 (The Disks Around Young Stellar Objects)

       The WF/PC-2 was used to study the disk around the young stellar
varible star GD-Tau which is located in the Taurus-Auriga molecular cloud. 
This disk was detected by a radio telescope, and is comparable to the
estimated size of the solar nebula about the time of planetary formation. 
The observations were completed as planned, and no problems were reported.

   1.9 Completed GHRS/1 6090 (UV Spectroscopy of Two Ultra-Hot White Dwarf
Candidates)

       The High Resolution Spectrograph (Side One) was used to make
far-ultraviolet spectrographic observations of the star HS0713+395 which is a
ultra-hot white dwarf candidate.  The spectra will be used to confirm the
star's temperature.  The observations were completed as planned, and no
anomalies were reported.

   1.10 Completed Two Sets of WF/PC-2 5957 (Snapshot of 3CR Radio Galaxies)

       The WF/PC-2 was used to make observations of radio galaxies 3C84.1,
3C172.0, 3C49.0, 3C352.0 and 3C153.0 to study the morphology of these radio
galaxies.  During the first iteration of this proposal, the guide star
acquisition failed, apparently caused by a binary star in the y-axis.  The
second iteration of the observation was executed as scheduled, and no
anomalies were noted.

   1.11 Completed GHRS/1 6209 (GL140L Photocathode Granularity Test for High
S/N Stability)

       The High Resolution Spectrograph (Side One) was used to make
ultraviolet observations using Detector #1 of standard star BD+75D325 in
order to conduct a photocathode granularity test for high signal to noise
ratio stability.  A flat field was obtained by obtaining the spectra at
different locations on the photocathode.  The observations were completed as
planned, and no problems were reported.

   1.12 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 HD173297 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.

   1.13 Completed WF/PC-2 6228 (Young Globular Clusters in Interacting and
Cooling Flow Galaxies)

       The WF/PC-2 was used to make observations of galaxy cluster NGC-1275
looking for young globular clusters.  Very deep exposures were made of the
target to attempt to distinguish between its two possible formation
histories.  The acquisition at 266/142200Z failed as did the reacquisitions
at 266/1548Z, 266/1723Z, and 266/1903Z.  For each failure, the search radius
was exceeded, and  both the primary and secondary stars were located in
crowded fields.

   1.14 Completed WF/PC-2 6303 (Observations of Galaxies Underlying Quasars)

       The WF/PC-2 was used to make observations of low red shift quasar
PG0043+039 in order to study its underlying galaxy.  The purpose is to detect
structure down to the 0.1 arcsecond level.  The observations were completed
as planned, and no problems were reported.

   1.15 Completed GHRS/2 6077 (Boron Abundances in Orion and Boron Production
in Type II Supernovae)

       The High Resolution Spectrograph (Side Two) was used to make
spectrographic observations of the young star HD35039 which in the Orion OB1
association to measure the abundance of boron.  The observations were
executed as scheduled, and no anomalies were noted.

   1.16 Completed WF/PC-2 5913 (Low Mass Binaries and the Luminosity
Function. )

        The WF/PC-2 was used to make observations of the low mass binary star
system SGP016 (a late-type M class dwarf) to study the  local stellar
luminosity function.  The observations were executed as scheduled, and no
anomalies were noted.

   1.17 Completed Three Sets of FGS 6272 (Gravitational Deflection of Light
(By Jupiter))

       The FGSs were used to make astrometric observations for the target
star HD148898 and two reference stars EIN1-REF and EIN2-REF to study the
gravitational deflection of light by the planet Jupiter.  The point is to
observe each star at several positions with respect to Jupiter.  The
observations were executed as planned, and no anomalies were reported.

   1.18 Completed Four 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.

   1.19 Completed FGS 6264 (Parallax of RR-Lyrae)

       The FGSs were used to make astrometric observations of the variable
star RR-Lyrae in order to measure its parallax.  RR-Lyrae is the proto-type
for a class of variable stars whose pulsation periods correlate with their
absolute magnitudes.  The observations were completed as planned, and no
problems were reported. 

   1.20 Completed FGS 6274 (Linking the HIPPARCOS to the Extragalactic
Reference Frame)

       The FGS #3 was used to make astrometric observations of extra-galactic
object (EGO) 0537-441IN, and reference stars 520-REF, 521-REF, 522-REF,
INCA221, et. al. in order to link the HIPPARCOS satellite to the
extragalactic reference frame.  The observations were completed as planned,
and no anomalies were reported.

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

       The WF/PC-2 was used to make observations of the galaxy NGC-1365
looking for standard candle Cepheid variable stars.  The purpose of these
observations is to help estimate the Hubble constant with an accuracy of 10%.
 The observations were executed as scheduled, and no anomalies were noted.

   1.22 Completed 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 galaxy NGC-0524
in order to study its 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.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 33
                                        Successful : 31

       HSTAR 5298 describes an acquisition failure at
       266/015710Z, apparently caused by a binary star in
       the y-axis.  Later HSTAR 5300 describes another
       acquisition failure at 266/142200Z that occurred
       when the search radius was exceeded due to both the
       primary and secondary stars being in a crowded field.

                          Scheduled Reacquisitions : 21
                                        Successful : 18

       Due to the same reasons mentioned above in the 
       description of HSTAR 5300, there were re-acquistion
       failures at 266/1548Z, 266/1723Z, and 266/1903Z.

   2.2 FHST Updates: 

                              Scheduled : 52
                             Successful : 52

   2.3 Operations Notes: 

       There were no operational problems to report.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH
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