HUBBLE SPACE TELESCOPE

                              DAILY REPORT #1395

PERIOD COVERED:  0000Z (UTC) 05/19/95 - 0000Z (UTC) 05/22/95

Daily Status Report as of 142/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of FOS/BL 6146 (FOS Location of Spectra and Aperture -
Part 2)

     The Faint Object Spectrograph (Blue Side) was used to conduct a test to
determine the repeatability of positioning the filter-grating wheel. All
observations were internal. A wave length calibration image was also taken.
All observations were executed as scheduled, and no anomalies were noted.

1.2 Completed WF/PC-2 5446 (The Nuclei of Nearby S0 and Spiral Galaxies: A PC
Snapshot Imaging)

       The WF/PC-2 was used to make observations of the core region of galaxy
NGC-1387 to provide statistics on the nuclear cusps, stellar condensations,
and inner stellar disks and dust lanes. The observations were executed as
scheduled, and no anomalies were noted.

1.3 Completed Three Sets of WF/PC-2  5476 (Continuum Snapshots of 3CR Radio
Galaxies) 

       The WF/PC-2 was used to make snapshot images of radio galaxies
3C435.0, 3C268.1, 3C241.0, 3C192.0, 3C255.0, 3C220.3, 3C227.0, 3C279.0, and
3C258.0 as part of a continuum survey and to study the galaxy's morphology.
The observations were executed as scheduled, and no anomalies were noted.

1.4 Completed WF/PC-2 5132 (A Photometric Search for Planets of Nearby Stars)


       The WF/PC-2 was used to make photometric observations of nearby star
HD128620 to search for possible planets. The exposure time was calculated so
that area beyond 1.2 arcseconds from the central star is not saturated. The
observations were completed as planned, and no problems were reported.

1.5 Completed FGS 6147 (Extragalactic Astronomy and Astrophysics Final: Cycle
4 Observations)

       The FGSs were used to make observations of targets NEWEGOB-36,
1620-REF, 1621-REF, 1622-REF, NEWHIP-36, NEWEGOB-36, 1622-REF, 1621-REF, and
1620-REF. The objective of this long-term program is to determine the
rotation of the HIPPARCOS reference relative to the extragalactic frame. The
observations were executed as scheduled, and no anomalies were noted.

1.6 Completed Three Sets of WF/PC-2 5091 (GTO High Latitude Parallel Program:
Cycle 4)

       The WF/PC-2 was used in parallel with the prime science observations
to make high galactic latitude observations greater than +/-30 degrees. The
observations were executed as scheduled, and no problems were reported.

1.7 Completed WF/PC-2 5397 (Determination of the Extragalactic Distance
Scale: Cycle 4 High)

       The WF/PC-2 was used to make images of galaxy NGC4725 to be used in
measuring the periods of Cepheid variable stars within the galaxies. The
observations were completed as planned, and no anomalies were noted.

1.8 Completed WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 1)


       The WF/PC-2 was used to make several internal bias, K-Spot, and flat
calibration observations to monitor the CCD camera electronics, the optical
alignment, and to check for contamination. The observations were completed as
planned, and no anomalies were noted.

1.9 Completed GHRS/2 6288 (Eclipse Mapping of the Chorospheric and Transition
Region Structure)

       The High Resolution Spectrograph (Side Two) was used to make
observations of star HD50337 (aka, HR2554) during the eclipse of its class A1
dwarf secondary star by the class G6 II primary star. The dwarf secondary
star will be used as a light source to observe the plasma absorption lines in
the outer atmosphere of the primary star. The observations were executed as
scheduled, and no anomalies were noted.

1.10 Completed FOC/96 5491 (Young Galaxies and the IG Medium)

       The Faint Object Camera (f96) was used to make spectroscopic
observations of two starburst galaxies at Z~0.4 to measure the size of the
discontinuity at the Lyman limit.  Images were also made to locate the zero
point of the spectra and to resolve structural details in these previously
unresolved objects.  The proposal completed with no reported problems.

1.11 Completed Three Sets of WF/PC-2 5370 (HST Medium-Deep Survey: Cycle 4
Medium, High Galactic Latitude)

       The WF/PC-2 was used in parallel with the prime science observations
to make high galactic latitude observations as part of a medium-deep sky
survey. The observations were completed as planned, and no problems were
reported.

1.12 Completed WF/PC-2 5369 (HST Medium-Deep Survey: Cycle 4 Medium, High
Galactic  Latitude) 

       The WF/PC-2 made a series of observations of high latitude objects as
part of a medium deep sky survey. The observations were taken in parallel
with other prime science observations. The observations were completed as
scheduled, and no anomalies were noted.

1.13 Completed FOC/96 5708 (Bulge Populations in S0 Galaxies: Cycle 4
Carry-Over)

       The Faint Object Camera (f/96) was used to make ultraviolet
observations of hot stars in the central bulge of the S0 class galaxy
NGC-4321 to study its stellar populations. The observations were completed as
planned and no anomalies were noted.

1.14 Completed Three Sets of FOS/RD 5532 (FOS Dark Monitoring)

       The Faint Object Spectrograph (Red Side) was used to monitor the
instrument's background (dark) images. The observations were executed as
scheduled, and no anomalies were noted.

1.15 Completed WF/PC-2 5981 (Calibration of Nearby Type IA Supernova as
Standard Candles: NGC-4639)

       The WF/PC-2 was used to make observations of Cepheid variable stars in
Galaxy NGC-4639 (which has produced a Type IA Supernova) to calibrate the
nova's absolute brightness so that it can be used as a standard candle for
distance measurements.The observations were executed as scheduled, and no
anomalies were noted.

1.16 Completed FOS/BL and GHRS/2 5501 (The Structure of the Coma Cluster: A
Search for Cool Absorbing Gas)

     The Faint Object Spectrograph (Blue Side) and the Goddard High
Resolution Spectrograph (Side 2) were used to make observations of the
intergalactic medium within the Coma Cluster by studying the spectra in the
line of sight from QSO-1258+2. They are looking for evidence of absorption
from cool gas within the cluster. The observations were executed as
scheduled, and no anomalies were noted.

1.17 Completed WF/PC-2 5479 (Subarcsecond Structure in Nearby AGNs)

       The WF/PC-2 was used to make snapshot observations of the nearby
active galactic nuclei of PKS2158-38 to study the interactions between the
central  engine, the stars, and the interstellar matter in the AGN. The
observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 17
                                        Successful : 17

                          Scheduled Reacquisitions : 29
                                        Successful : 29

   2.2 FHST Updates: 

                              Scheduled : 23
                             Successful : 23

   2.3 Significant HSTARs: None

   2.4 Operations Notes: 

There were no reported operational problems reported this weekend.

PRS 6.3/PDB 42B were installed and burned in this weekend.  There were no
problems.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH
                     -END-