HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1860

PERIOD COVERED:  0000Z (UTC) 04/18/97 - 0000Z (UTC) 04/21/97

Daily Status Report as of 111/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6607 (The Origin and Nature of UV Bright Stars =
in Globular Clusters - II)

       The WF/PC-2 was used to investigate the UV-bright stellar =
populations of NGC-1904.  This galactic globular cluster is known to be =
bright at the far-UV wavelengths, with known extended blue HB tails.  =
This observation will complement data obtained during Cycle 5 and during =
the UITAstro-1 flight in December of 1990.  The proposal completed as =
planned, and no problems were noted.

   1.2 Completed Two Sets of STIS/CCD 7107 (STIS CCD Hot Pixel Annealing)

       The Space Telescope Imaging Spectrograph (CCD) was run though an =
annealing process.  A bias and a dark calibration image were also taken.  =
The effectiveness of the CCD hot pixel annealing process is assessed by =
measuring the dark current behavior before and after annealing and by =
searching for any window contamination effects.  In addition, CTE =
performances are examined by looking for traps in a low signal level =
flat.  The observations were executed as scheduled, and no anomalies were =
noted.

   1.3 Completed WF/PC-2 6673 (Black Holes and Gas Disks in a Complete =
Sample of Radio Loud UGC Ellipticals)

       The WF/PC-2 was used to make observations of radio load, =
elliptical galaxies UGC04862 and UGC07629 in order to search for possible =
 black holes and gas disks.  Hydrogen-Alpha and broad band observations =
were taken to determine the luminosity profiles and stellar populations =
(on the tens of parsec scale), and detect nuclear regions or disks of gas =
and dust.  The observations were completed as planned, and no anomalies =
were reported.

   1.4 Completed FGS 6768 (Continuation of an Astrometric Search For =
Planetary Companions to Proxima Cen)

       The FGSs were used to make astrometric observations of the star =
Proxima-Cen and several other reference stars.  Excluding our Sun, this =
is the next closest star to the planet Earth, at just over 4 light years =
away.  These data will be combined with data from previous cycles and =
analysis will be done looking for any indications of a planetary =
companion.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.5 Completed NIC/1/2/3 7043 (NICMOS Focus Monitor)

       The Near Infrared Cameras (Cameras 1, 2, and 3) were used to make =
observations of NGC-3603-3 in order to make focus calibration and =
monitoring measurements.  This proposal is built to run NIC/1/2 focus =
sweeps on a weekly
basis, and NIC/3 focus sweeps twice a week during SMOV.  The observations =
were executed as scheduled, and no anomalies were noted.

   1.6 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 galaxies ESO-205G7 and NGC-406 in order to study their central =
bulges.  The aim is to investigate the core properties, 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.

   1.7 Completed NIC/2/3 7119 (Unveiling the Hidden Quasar of IC5063)

       The Near Infrared Cameras (Cameras Two and Three) were used to =
investigate the central source of IC5063 which shows properties which are =
a cross between a Seyfert and a radio galaxy.  High spatial resolution inf=
rared observations will offer clues to the nature of the nucleus.  During =
this proposal, HSTAR 6035 was generated.  It describes a NICMOS error log =
message where value changes require explanation.  Then, near the end of =
this six-and-one-half hour proposal, a status buffer message indicated =
that filter wheel #3 did not reach its position on the first try and that =
a re-try was in progress.  HSTAR 6034 was written.  Otherwise, the =
observations completed as planned, with no further anomalies.

   1.8 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 QDOTUL1R.  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.

   1.9 Completed STIS/CCD 7094 (STIS Sensitivity on Axis)

     The Space Telescope Imaging Spectrograph (CCD) was used to measure th=
e STIS relative response to a point source, BD+75D325, in the first order =
modes along the slit direction.  The proposal executed as scheduled, and =
no anomalies were noted.

   1.10 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 nucleus (AGN) MS0904.4-1. =
 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.

   1.11 Completed NIC/1/2/3 7114 (Orion Proplyds)

       The Near Infrared Cameras (Cameras One, Two, and Three) were used =
in this Early Release Observation (ERO) of Orion Proplyds P114-426 and =
P183-405.  Near the beginning of this eight-and-one-half hour proposal =
HSTAR 6036 was written to describe the same unexplained NICMOS error log =
number error that was mentioned in 1.7.  Otherwise, the observations =
completed as scheduled, with no further problems. 

   1.12 Completed WF/PC-2 7029 (WF/PC-2 Cycle 6/SMOV Lyman Alpha =
Check-Part 2)

       The WF/PC-2 was used to make observations of the WD0310-688 in =
order to obtain far-ultraviolet (Lyman Alpha) measures of the system's =
throughput.  This is to quantify any contamination of the WF/PC-2 =
pick-off mirror caused by SMOV activities.  The observations were =
completed as planned, and no anomalies were reported.

   1.13 Completed WF/PC-2 6887 (A Photometric Search for Faint Companions =
to Nearby Stars)

       The WF/PC-2 was used to make a photometric search observations of =
the nearby star PROXIMA-CE in order to look for possible companions.  The =
technique involves use of the Planetary Camera with wide band pass =
filters to photometrically measure for the presence of resolved dark =
companions.  The observations were executed as scheduled, and no =
anomalies were noted.

   1.14 Completed NIC/1/2/3 7046 (NICMOS Inflat Transfer and Stability =
Test)

       The Near Infrared Cameras (Cameras One, Two, and Three) were used =
to demonstrate and test flat fielding capabilities and stability.  =
One-half-hour before the end of this sixteen hour proposal, there were =
four NICMOS status buffer messages that stated that the image/header =
queue was full.  HSTAR 6037 was written.  Any effects on science are not =
currently known.  The observations executed as planned, and no further =
anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 23
                                        Successful : 23

                          Scheduled Reacquisitions : 21
                                        Successful : 21

   2.2 FHST Updates: 

                              Scheduled : 37
                             Successful : 37

   2.3 Operations Notes: 

       Gyro #1 was powered on at 108/152441Z as planned.

       Other that the possible NICMOS problems mentioned in 1.7, 1.11, =
and 1.14, there were no significant operational problems reported over the=
 weekend.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

       Continuation of normal science and SMOV operations.

/DMH