HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1831

PERIOD COVERED:  0000Z (UTC) 03/10/97 - 0000Z (UTC) 03/11/97

Daily Status Report as of 070/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6366 (The Early Onset of Asymmetric Outflow =
During the Planetary Nebula Formation)

       The WF/PC-2 was used to make observations of the planetary nebula =
V1027-Cygni in order to study its asymmetric outflow during its =
formation.  The purpose of these exposures was to determine the =
characteristics of the mass loss that occurs as a star leaves the =
asymptotic giant branch.  The observations were completed as planned, and =
no problems were reported.

   1.2 Completed WF/PC-2 5927 (Nuclear Disks in Radio Galaxies)

       The WF/PC-2 was used to make observations of the radio galaxy 3C75 =
in order to study its nuclear disk.  This will be used to establish the =
morphology and characteristics of the disk, and the alignment of the disk =
with the radio jet.  The observations were executed as scheduled, and no =
anomalies were noted.

   1.3 Completed Two Sets of WF/PC-2 6363 (The Environments and Host =
Galaxies of BL-Lac Objects)
363

       The WF/PC-2 was used to make snapshot survey observations of =
BL-Lac object H1722+119 in order to study its environment and its host =
galaxy.  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.

   1.4 Completed Four Sets of WF/PC-2 6852 (The Martian Surface and =
Atmosphere)

       The WF/PC-2 was used to make observations of the planet Mars to =
make high-resolution observations of the surface and atmosphere just =
before (or during) the March 1997 opposition.  These observations =
employed PC exposures with full-aperture filters, the methane quad =
filter, and linear ramp filters.  The observations were executed as =
scheduled, and no anonmalies were noted.

   1.5 Completed Two Sets of WF/PC-2 6361 (High Resolution Imaging of =
X-Ray Selected AGNs)

       The WF/PC-2 was used to make high resolution  observations of the =
known low, red-shifted x-ray active galactic nucleus (AGN) MS1219.6+7.  =
These data will allow a study of the optical properties of an unbiased =
sample of AGN host galaxies.  The observations were completed as =
scheduled, and no problems were reported.

   1.6 Completed Two Sets of STIS/CCD 7075 (STIS Corrector Alignment, =
Coarse)

       The Space Telescope Imaging Spectrograph (CCD) was used to make =
observations of object G191B2B in order to study the systems coarse =
alignment.  This procedure will bring the STIS corrector system into =
approximate alignment in both focus and tip/tilt.  The observations were =
completed as scheduled, and no anomalies were reported. 

   1.7 Completed Two Sets of WF/PC-2 6587 (Black Holes and Cores of =
Early-Type Galaxies)

       The WF/PC-2 was used to make observations of early-type galaxies =
NGC-2974 and NGC-3557 in order to study their nuclear core regions and =
their possible black holes.  The campaign to find black holes in the =
centers of galaxies using HST has so far been highly successful.  The =
observations were completed as planned, and no problems were reported. 

   1.8 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 ESO317G20 in order to study its central bulge.  The aim is =
to investigate the core properties, correlations with global galactic prop=
erties, and the frequency of occurrence of multiple and/or miscentered =
nuclei.  The observations were completed as scheduled, and no anomalies =
were noted.

   1.9 Completed FGS 7026 (Fold Flat 3 (FF3) Position Optimization for =
FGS-1R)

       The FGSs were used to make FF3-C, FGS-1R S-curves which will be =
optimized to achieve a modulation within 10 percent of the maximum =
accepted value at a particular field location and to produce an =
acceptable set of S-curves over the entire FGS field of view (FOV).  The =
observations were completed as planned and no problems were reported. 

   1.10 Completed WF/PC-2 7022 (WF/PC-2 SM97 MONITOR)

       This calibration proposal is the routine internal monitor for =
WF/PC-2, to be run twice weekly to monitor the health of the cameras.  A =
variety of internal exposures were obtained in order to provide a monitor =
of the integrity of the CCD camera electronics in both bays (gain 7 and =
gain 15), a test for quantum efficiency in the CCDs, an internal check on =
the alignment of the WF/PC-2 optical chain, and a monitor for possible =
buildup of contaminants on the CCD windows.  This observation was =
completed as scheduled, and no anomalies were noted.

   1.11 Completed WF/PC-2 6792 (Planetary Nebulae With Supporting =
Infrared Data)

       The WF/PC-2 was used to make observations of the planetary nebula =
NGC-6818.  Recent work has shown that nebular abundances derived from =
recombination lines are up to a factor of five larger than those obtained =
from the traditional optical/UV collisionally excited lines.  The =
observations were executed as scheduled, and no anomalies were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 14
                                        Successful : 14

                          Scheduled Reacquisitions : 2
                                        Successful : 2

   2.2 FHST Updates: 

                              Scheduled : 35
                             Successful : 35

   2.3 Operations Notes: 

       There were no reported opertional problems.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Continuation of SMOV activities.

/DMH