HUBBLE SPACE TELESCOPE

                        DAILY REPORT #1448

PERIOD COVERED:  0000Z (UTC) 08/04/95 - 0000Z (UTC) 08/07/95

Daily Status Report as of 219/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

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

       The WF/PC-2 was used to make observations for radio galaxies 3C184.0,
3C6.1, 3C299.0 and 3C268.3 to study the morphology of the galaxies. The
observations were executed as scheduled, and no anomalies were noted.

   1.2 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 NGC-650 and IC3568 to study their nuclei and to look for possible
companions.  The observations were executed as scheduled, and no anomalies
were noted.

   1.3 Completed Two Sets of GHRS/2 5880 (OH as a Signpost of Accretion in T
Tauri Stars)

       The High Resolution Spectrograph (Side Two) was used to make
spectrographic observations of the T Tauri class stars HD198149 and HD142560
to look for emissions of the radical OH which is a signpost for accretion
action is the system.  The OH radical should come from the photo-dissociation
of water in the infalling material in the accretion disk.  The observations
were completed as planned, and no problems were reported.

   1.4 Completed GHRS/2 5862 (Boron in Very Metal Poor Stars: Production of
Light Elements)

       The High Resolution Spectrograph (Side Two) was used to make
spectrographic observations of the very metal poor halo star  BD+23D3130
looking for the presence of the element boron.  The data will help
differentiate the proposed production mechanism for boron and beryllium.  The
observations were completed as planned, and no anomalies were reported.

   1.5 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-1707 and STAR-0122 to study the GW Vir
instability strip and the photospheric parameters and composition.  The
observations were completed as planned, and no problems were reported.

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

       The WF/PC-2 was used to make internal bias, internal flat images and
K-Spot calibrations to monitor the health of the cameras.  The observations
were executed as scheduled, and no problems were reported.

   1.7 Completed GHRS/2 6087 (The UV Flux Deficiency in Chemically Peculiar
Stars)

       The High Resolution Spectrograph (Side Two) was used to make medium
resolution high signal-to-noise ratio ultraviolet flux deficiency
observations of the star HD112413 (aka, Alpha-2 CV) which is known to be a
chemically peculiar star.  This star displays a lower ultraviolet flux than
is observed in normal composition stars of the same color.  The observations
were completed as planned, and no anomalies were noted. 

   1.8 Completed Two Sets of WF/PC-2 5932 (Morphologies of High Redshift
Radio Galaxies)

       The WF/PC-2 was used to make observations the high redshift galaxies
GAL-1710+1 and GAL-1245+0 (at distances of Z>2) in order to study their
morphologies, especially the fine detail in clumping.  The images were
obtained in the continuum and in Lyman-Alpha.  The observations were executed
as planned, and no anomalies were noted.

   1.9 Completed GHRS/1 6154 (High Resolution Observations of Highly Ionized
Gas Toward a Halo Star)

       The High Resolution Spectrograph (Side One) in the echelle mode was
used to make high resolution observations of the B class star HD119608 to
study highly ionized gas.  The intent is to determine which ionization
mechanisms are producing the highly ionized gas that is observed in the
galactic halo.  The observations were completed as planned, and no anomalies
were noted.

   1.10 Completed WF/PC-2 6184 (WF/PC-2 Cycle 5 Photometric Calibration
Monitor UV/Opt STD)

       The WF/PC-2 was used to make ultraviolet and optical calibration images
of standard star GRW+70D582.  The purpose is to monitor the photometric
stability and quantum efficiency of the WF/PC-2 from the far ultraviolet to
the near-IR.  The observations were executed as scheduled, and no anomalies
were noted.

   1.11 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.

   1.12 Completed WF/PC-2 6030 (Clouds and Aerosols in Saturn and Uranus)

       The WF/PC-2 was used to make observations of the planet Saturn to
determine the vertical/horizontal distributions, and the optical and micro
physical properties of the aerosols and clouds of this planet.  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 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.

   1.14 Completed FGS 6047 (Calibrating the Mass Luminosity Relation at the
End of the Main Sequence)

       The FGS were used to make astrometric observations of star GL22 as
part of a study to determine its mass luminosity relationship.  The purpose
is to measure the precise parallax and relative orbit of its faint companion.
 The observations were completed as planned, and no problems were reported.

   1.15 Completed FGS 6270 (The Parallax of RW Tri)

       The FGSs were used in the POS Mode to make astrometric observations of
old nova RW Tri and several other reference stars to measure its parallax. 
The observations were completed as planned, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 22
                                        Successful : 22

       One acquisition at 219/0204Z failed to coarse track.
       HSTAR 5249 was written to document this event.

                          Scheduled Reacquisitions : 27
                                        Successful : 27

       Three reacquisitions, at 219/0347Z, 219/0528Z and at
       219/0710Z, failed to coarse track.

   2.2 FHST Updates: 

                              Scheduled : 44
                             Successful : 44



   2.3 Operations Notes: 

       There was a negative Mode 2 communications acquisition 
       at 218/1942Z.  The event was re-scheduled using MA #2
       frequency instead of MA #1 frequency, and all went
       well.  A TTR was written.

       It was discovered that on day 215 at 212509Z there was
       missing data in WFPC observation 87 of proposal 6189.
       The data had been predicted to be on track 1 of STR 3,
       between the positions of 16 and 28 percent.  HSTAR 
       5248 describes this event.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH
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