HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1579

PERIOD COVERED:  0000Z (UTC) 02/27/96 - 0000Z (UTC) 02/28/96

Daily Status Report as of 059/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed GHRS/1 6168 (GHRS PHA/Ion/Threshold Adjustment Test-Cycle =
5)

       The High Resolution Spectrograph (Side One) was used to run the =
standard pulse height analysis (aka, PHA), and to make internal flat =
calibration images, ion and threshold adjustments, and a dark calibration =
image.  These are internal observations, which will be used to determine =
the best threshold setting for each diode.  The observations were =
completed as planned, and no problems were reported.

   1.2 Completed Two Sets of WF/PC-2 6363 (The Environments and Host =
Galaxies of BL-Lac Objects)

       The WF/PC-2 was used to make snapshot survey observations of BL-Lac =
objects IES1745+50 and IES1044+54 in order to study their environment and =
their host galaxies.  The goal is to investigate systematic trends in host =
galaxy type, unusual morphological features, nearby companion galaxies, =
etc.  The observations were executed as scheduled, and no anomalies were =
noted.

   1.3 Completed WF/PC-2 5924 (Nuclear Emission Line Region Associated =
with Compact Flat Spectrum)

       The WF/PC-2 was used to make spectrographic observations of the =
nuclear emission region of galaxy NGC-1497 to study its compact flat =
spectrum.  There is evidence that this jet-produced AGN is powered by =
accretion disks feeding massive black hole.  The observations were =
executed as schedule, and no anomalies were noted.

   1.4 Completed FOS/RD and WF/PC-2 5852 (Lyman-Alpha Forest Cloud Sizes =
and Clustering at Z~0.5)

       The Faint Object Spectrograph (Red Side) and the WF/PC-2 were used =
to make observations of QSO MC1146+111 to study its Lyman-Alpha forest and =
its relation to other nearby QSOs.  A wave length calibration image was =
also taken.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.5 Completed 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.

   1.6 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section =
Only): Cycle 4) 

        This proposal was executed as scheduled, and no anomalies were =
noted. 

   1.7 Completed WF/PC-2 5849 (Host Galaxies of Luminous Nearby Quasars)

       The WF/PC-2 was used to make deep exposure observations of host =
galaxy PG1116+215 which is known to have a luminous nearby quasar.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.8 Completed WF/PC-2 5839 (Gamma Ray Burst Counterparts in the =
Ultraviolet)

      The WF/PC-2 was used to make ultraviolet observations of object =
GRB790325B which is thought to be an optical counterpart of a gamma ray =
burster.  Three filters from the blue to the ultraviolet were used.  The =
observations were completed as scheduled, and no anomalies were noted.

   1.9 Completed Two Sets of 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-2344 in order to study its central bulge.  The aim is to =
investigate the core properties, the correlations 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.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 4
                                        Successful : 4

                          Scheduled Reacquisitions : 11
                                        Successful : 11

   2.2 FHST Updates: 

                              Scheduled : 9
                             Successful : 8

       The update at 058/185000Z failed.

   2.3 Operations Notes: 

       HST operations were transferred to the SAMS backup facility at =
059/0930Z.  They will remain there until approximately 059/1900Z, when =
maintenance work in the MOR area will have been completed.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH