HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1837

PERIOD COVERED:  0000Z (UTC) 03/18/97 - 0000Z (UTC) 03/19/97

Daily Status Report as of 078/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6601 (Evolution of Binary Neutron Stars and =
Their White Dwarf Companions: Part 2)

       The WF/PC-2 was used to make observations of the binary star =
STAR-2033 which is known to be a neutron star with a white dwarf =
companion, and is also a millisecond rate pulsar.  This is part of an =
on-going program which is intended to enlarge the sample of known white =
dwarf companions as new millisecond pulsars are discovered.  The =
observations were executed as scheduled, and no anomalies were noted. 

   1.2 Completed Three Sets of WF/PC-2 7019 (WF/PC-2 SMOV Flat Field =
Check)

       The WF/PC-2 was used to obtain a sequences of Earth streak and =
internal flats to check for changes at the 1% level.  The observations =
were completed as scheduled, and no problems were reported 

   1.3 Completed WF/PC-2 6905 (WF/PC-2 Cycle 6 Calibration: Internal =
Monitor)

       The WF/PC-2 was used to make several internal calibration =
observations including biases and internal flats as part of a Cycle 6 =
calibrations procedure.  A variety of internal exposures are run weekly =
to verify and monitor the health of the camera.  The observations were =
executed as scheduled, and no anomalies were noted.

   1.4 Completed 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 nuclius (AGN) MS0713.4+3.  =
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.

   1.5 Completed WF/PC-2 6735 (Locating Disks, Accretion Flows, and =
outflows in Close Binary T Tauri Stars)

       The WF/PC-2 was used to make observations of the binary system, =
T-Tauri class star FW-Tau in order to study the location of disks and =
accretion flows.  Although the standard model for T-Tauri star formation =
is based on single stars, we know that these T-Tauri stars are in =
multiple star systems having separations less than 100 AU.  The observatio=
ns were completed as scheduled, and no anomalies were noted. 

   1.6 Completed Two Sets of WF/PC-2 7022 (WF/PC-2 SM97 Monitor)

       This calibration proposal is the routine internal monitor for =
WF/PC-2, 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.

   1.7 Completed WF/PC-2 6424 (Calibrations of Stellar Evolutionary Ages =
and Variations in the LMF)

       The WF/PC-2 was used to make observations of the relatively old, =
open cluster NGC-2477 to determine the luminosity and mass function (LMF) =
of the white dwarfs and low mass (i.e., red) stars, and to make a =
calibration study of stellar evolutionary ages.  The observations was =
executed as scheduled and no anomalies were noted.

   1.8 Completed WF/PC-2 6837 (The Ultraviolet Properties of "Dwarf" =
Seyfert 1 Nuclei)

       The WF/PC-2 was used to make ultraviolet observations of the =
"dwarf", type one, Seyfert galaxy NGC-3226.  This class of "dwarf" =
Seyfert populate the faint end of the local AGN luminosity function and =
hold important clues to the evolution of the entire AGN population.  The =
observations were completed as scheduled, and no problems were reported. 

   1.9 Completed WF/PC-2 6346 (Snapshot Survey of the Ultraluminous IRAS =
Galaxy Sample-Part 1 High)

       The WF/PC-2 was used to make snapshot survey observations of the =
ultraluminous IRAS galaxy IR09320+61.  These data will be searched for =
multiple cores, which imply a merger has occurred, and for starburst =
regions.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.10 Completed WF/PC-2 6701 (Photometry of the Globular Cluster System =
of the Sagittarius Dwarf Galaxy)

       The WF/PC-2 was used to make observations of the globular cluster =
system Ter7 which is located the Sagittarius Dwarf Galaxy.  Isochrome =
fits to these data will yield the accurate age of this system.  The =
observations were completed as schedule, and no anomalies were reported. 

   1.11 Completed WF/PC-2 6565 (Imaging of Proto-Planetary Nebulae)

       The WF/PC-2 was used to make high resolution observations of the =
proto-planeatary nebula IRAS17245 which is known to show bipolar morpholog=
ies in ground-based observations.  The observations were executed as =
scheduled, and no anomalies were noted. 

2.0 FLIGHT OPERATIONS SUMMARY:


2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 9
                                        Successful : 9

                          Scheduled Reacquisitions : 6
                                        Successful : 6

   2.2 FHST Updates: 

                              Scheduled : 21
                             Successful : 21

   2.3 Operations Notes: 

       The battery #1 capacity test has been completed.  Discharge was =
terminated at approximately 077/1744Z.

       NICMOS was taken to suspend at 077/1913Z due to an invalid operate =
mode.  At 077/1907Z, a patch was applied to the NICMOS filter wheel =
disabled error action.  NICMOS was commanded from boot to operate at =
078/0834Z.

       The secondary mirror was moved at 077/2251Z

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

       Continuation of SMOV activities.

/DMH