HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1961

PERIOD COVERED:  0000Z (UTC) 09/11/97 - 0000Z (UTC) 09/12/97

Daily Status Report as of 255/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed STIS/CCD 7659 (Daily Darks to Update Acquisition Bad Pixel
Table)

       The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad pixel table.
Daily hot pixel lists can also be used for science data analysis.  The
observations were executed as scheduled, and no anomalies were noted.

   1.2 Completed WF/PC-2 7621 (WF/PC-2 Cycle 7 Supplemental Darks PT1/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
This set of calibrations is intended to obtain three dark frames every day
to provide data for monitoring and characterizing the evolution of hot
pixels.  The observations were executed as scheduled, and no anomalies were
noted.

   1.3 Completed Six Sets of STIS/CCD 7601 (CCD Dark and Bias Monitor)

       The Space Telescope Imaging Spectrograph (CCD) was used to conduct
bias and dark monitoring.  Also, observations were made to track the growth
of hot pixels on the CCD in general and within the various target
acquisition apertures specifically.  The observations were completed as
planned, and no anomalies were reported.

   1.4 Completed Four Sets of NIC/1/2/3 7688 (ACCUM Darks)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
measure dark current on individual pixels for a limited set of ACCUM
exposure times in order to conduct an internal calibration of ACCUM mode.
The observations were completed as scheduled, with no problems reported.

   1.5 Completed WF/PC-2 6648 (The link between the UV Saturnian aurora and
the polar stratospheric haze)

       The WF/PC-2 was used to make ultraviolet observations of the auroral
zones on the planet Saturn.  The purpose of these observations is manyfold.
{1} To study the latitudinal, longitudinal and temporal variation of the
aurora of both hemispheres.  This result may be achieved by imaging a full
planetary rotation using the UV sensitive Wood's filters of the WF/PC-2
camera.  {2} To image polar caps in wavelengths without auroral
contamination to obtain a multispectral high resolution mapping of the
polar haze opacity and scattering properties.  The observations were
completed as planned, and no anomalies were reported.

   1.6 Completed Two Sets of NIC/1/2/3 7328 (High Resolution IR Imaging
Survey (IRIS) of the Centers of the Nearest Active Galaxies)

       The Near Infrared Camera (Camera One, Two and Three) was used to
make high resolution infrared observations of the nearest active galaxies
Markarian9 and Markarian1 in order to study their inner nuclear regions.
Observing in the near-IR minimizes the dust obstruction and maximizes
sensitivity to the old stellar population which dominates the mass.  The
observations were executed as scheduled, and no anomalies were noted.

   1.7 Completed NIC/2/3 7791 (NICMOS Focus Sweep at 2 FOM positions)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations of the cluster NGC-3603 as part of a NICMOS focus sweep.  The
main objectives of this proposal are: a} to cover sufficient region of PAM
focus space to ensure the optimal locations are included, and  b} measure
vignetting and image quality at different FOM positions.  The observations
were executed as schedule, and no anomalies were noted.

   1.8 Completed Three Sets of WF/PC-2 7786 (Pure Parallel Archive Survey -
Continuation)

       The WF/PC-2 was used to make observations as part of an archival
survey program in which the images were taken in parallel with the prime
science observations.  These WF/PC-2 parallel observations were obtained in
the ultraviolet in a search for interesting objects.  The observations were
completed as planned, and no problems were reported.

   1.9 Completed NIC/2 7420 (A Near-Infrared Search for Very Low Mass
Companions to Stars Within 10 Parsecs of the Sun)

       The Near Infrared Camera (Camera Two) was used to make searching
observations for very low mass companions to variable star HD217987.  This
star is known to be within 10 parsecs of the Sun.  The observations were
executed as scheduled, and no anomalies were noted.

   1.10 Completed WF/PC-2 5922 (HST Observations of Hawaii Deep Survey Fields)

       The WF/PC-2 was used to make observations of field SSA17 as part
survey to study the Hawaii Deep Field objects.  For those galaxies
detected, the morphological type will be determined.  The evolution of the
galaxy type mix and surface brightness profile with redshift will be
studied.  As documented in HSTAR 6166, the guide star acquisition for this
proposal (at 254/0659Z) defaulted to fine lock one FGS-3 only.  Otherwise,
the observations were executed as scheduled, and no further anomalies were
noted.

   1.11 Completed NIC/2 7331 (Near-IR Properties of the Bulges of Spiral
Galaxies)

       The Near Infrared Camera (Camera Two) was used to make infrared
observations of the bulge in spiral galaxy NGC-2460.  Near-IR data at HST
resolution are essential for correcting for the effect of dust and will
enable us to derive robust nuclear properties for the sample.  The
observations were executed as scheduled, and no anomalies were noted.

   1.12 Completed FGS 6538 (The Distances to Dwarf Novae, and the
Calibration of the Technique of Infrared Spectroscopic Parallax)

       The FGSs were used to make astrometric observations of the Dwarf
Novae SS-Aug and several other reference stars in order to measure its
distance from its parallax.  The distance to this dwarf novae is poorly
known.  This deficiency severely impacts our ability to quantify the
energetics of the various processes taking place in dwarf novae systems.
The observations were executed as scheduled, and no anomalies were noted.

   1.13 Completed Three Sets of STIS/CCD 7781 (STIS Non-Scripted Parallel
Archive Proposal - Full Orbit)

       The Space Telescope Imaging Spectrograph (CCD) was used for a
non-scripted parallel archive proposal (one full orbit).  The observations
were executed as scheduled, and no anomalies were noted.

   1.14 Completed Four Sets of NIC/1/2/3 7726 (NICMOS One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make a one orbit parallel calibration observations.  The observations were
executed as scheduled, and no anomalies were noted.

   1.15 Completed FGS 7489 (Triton's Atmospheric Structure: Problems With
Present Models)

       The Fine Guidance Sensors were used to make photometric and
astrometric observations of the moon Triton during an occultation of a
bright field star.  This to observe these events using the FGS both as a
high-speed photometer and in its normal role for occultation astrometry
before and after each event.  The observations were executed as scheduled,
and no anomalies were noted.

   1.16 Completed FOC/96 5918 (Imaging Polarimetry of the Narrow Line
Region of Seyfert galaxies)

       The Faint Object Camera (f/96) was used to make imaging polarimetry
observations of the narrow line region within galaxy Markarian78.  The
origin of the polarization of the narrow lines is not understood.  Imaging
polarimetry allows us to disentangle intrinsic and scattered emission and
to determine the true distribution of the emitting gas and the reflecting
medium.  The observations were completed as planned, and no problems were
reported.

   1.17 Completed NIC/1/2/3 7729 (NICMOS Short One Orbit Parallel)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
obtain "JHK" imaging of sky regions while another instrument was prime.
These observations were  part of the short NICMOS one-orbit parallel
program.  The observations were executed as scheduled, and no anomalies
were noted.

   1.18 Completed Two Sets of WF/PC-2 6802 (Cosmology With the Medium Deep
Survey)

       The WF/PC-2 was used to make observations taken in parallel with the
prime science observations as part of the Medium Deep Sky Survey.  The
observations were executed as scheduled, and no problems were reported.

   1.19 Completed STIS/CCD 7782 (STIS Non-Scripted Parallel Archive
Proposal - Half Orbit)

       The Space Telescope Imaging Spectrograph (CCD) was used for a
non-scripted parallel archive proposal (one-half orbit).  The observations
were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 7
                                        Successful : 7

       As detailed in 1.10 one acquisition defaulted to fine lock on one
FGS only.

                          Scheduled Reacquisitions : 5
                                        Successful : 5

   2.2 FHST Updates:

                              Scheduled : 8
                             Successful : 8

   2.3 Operations Notes:

       Operations personnel had a quiet operational day.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH