HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1616

PERIOD COVERED:  0000Z (UTC) 04/18/96 - 0000Z (UTC) 04/19/96

Daily Status Report as of 110/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 5994 (HST Images of New Candidates For Distant =
Proto-Ellipticals)

       The WF/PC-2 was used to make an observation of blue compact galaxy =
SA57-4259 in order to measure its size, light profiles, and color.  The =
observation was executed as scheduled, and no anomalies were noted.

   1.2 Completed Two Sets of FOS/RD 6236 (FOS Cycle 5: Location of =
Spectra and Wavelength Calibration: Red Side Detector)

       The Faint Object Spectrograph (Red Side) was used to make =
calibration observations in order to determine the location of the =
spectra and to perform a wavelength calibration.  All observations were =
internal.  A Taled calibration was also completed.  The observations were =
completed as planned, and no anomalies were reported.

   1.3 Completed WF/PC-2 6359 (Core Properties of the Bulges of Spiral =
Galaxies)

       The WF/PC-2 was used to make snapshot survey observations of =
spiral galaxy NGC-2964 in order to study its central bulge.  The aim is =
to investigate the core properties, correlation's with global galactic =
properties, and the frequency of occurrence of multiple and/or =
miscentered nuclei.  The observations were completed as scheduled, and no =
anomalies were noted.

   1.4 Completed GHRS/1 5871 (Rapid UV Variability: The Contribution of =
Flare Heating)

       The High Resolution Spectrograph (Side One) was used in the rapid =
mode to make ultraviolet spectrographic observations of the late type =
star YZ-CMI which has an active chromosphere to study the rapid =
variability of its emission lines.  The observations were completed as =
scheduled, and no problems were reported.

   1.5 Completed WF/PC-2 6353 (A Snapshot Emission Line Imaging Survey of =
Very Low Excitation Planetary Nebulas)

       The WF/PC-2 was used to make snapshot observations as part to an =
emission line survey of the very low excitation planetary nebula =
PK146+07D1 (Class PNe).  This target was selected based on the O III/H =
alpha line flux ratio.  The observations were executed as scheduled, and =
no anomalies were noted.

   1.6 Completed GHRS/1 5877 (The 11B to 10B Ratio in the Interstellar =
Medium.)

        The High Resolution Spectrograph (Side One) was used to make =
spectrographic observations of the bright star HD149757 in order to study =
the foreground interstellar medium.  This is to measure the abundance =
ratio of two boron isotopes.  The observations were completed as planned, =
and no problems were reported.

   1.7 Completed WF/PC-2 6329 (A Photometric Search for Planets of Nearby =
Stars)

       The WF/PC-2 was used to make photometric observations of nearby =
star BD+4D3561 in order to search for planets.  The technique involves =
use of the Planetary Camera with narrow and wide bandpass filters to =
measure photometrically the presence of resolved dark companions.  The =
observations were executed as scheduled, and no anomalies were noted. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates: 

                              Scheduled : 20
                             Successful : 20

   2.3 Operations Notes: 

       HSTAR 5569 was written to document FGS-3 star selector differences =
which occurred in the SAA.  The Star Selector Compensation Error B =
flagged high twice in a one-second period.  Later, Star Selector =
Difference B-A flagged low and remained that way until the following =
guide star acquisition.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH