HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1967

PERIOD COVERED:  0000Z (UTC) 09/19/97 - 0000Z (UTC) 09/22/97

Daily Status Report as of 265/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Eight Sets of 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.

   1.2 Completed Four Sets of NIC/1/2/3 7412 (An HST/NICMOS Search for
Young Brown Dwarfs and Giant Planets)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations taken in parallel with the prime science observations to
be part of a survey to look for large planets and/or small brown dwarf
stars which are in orbit around the T-Tauri class stars RXJ15598-2,
RXJ15489-3, RXJ15409-3 and RXJ15438-3.  At an age of 2 to 20 million years
these low-mass companions will be considerably brighter than more evolved
brown dwarfs or giant planets orbiting main-sequence stars, and hence will
be much easier to detect.  The observations were completed as planned, and
no anomalies were noted.

   1.3 Completed Twelve 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.

   1.4 Completed Four Sets of WF/PC-2 7623 (WF/PC-2 Cycle 7 Internal Flats)

       The WF/PC-2 was used to make a set of internal Cycle 7 calibration
flats which are designed to monitor the pixel to pixel flat field response
and the visflat lamp degradation, as well as detect any possible changes
due to contamination.  These calibration observations were completed as
planned, and no problems were reported.

   1.5 Completed Four 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.

   1.6 Completed FGS 7598 (Long Term Stability of Transfer Scan Mode in FGS-3)

       The Fine Guidance Sensor (FGS-3) was used to make observations of
standard star UPGREN69 in order to study the long term stability of the
transfer scan mode.  The observations were completed as planned, and no
problems were reported.

   1.7 Completed FGS 7597 (Long Term Stability of Transfer Scan Mode in FGS-1R)

       The Fine Guidance Sensors (FGS-1R) was used to make observations of
the standard star UPGREN69 in order to study the long term stability of the
transfer scan mode.  The observations were executed as scheduled, and no
anomalies were noted.

   1.8 Completed Seven 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.

   1.9 Completed Two Sets of NIC/2 7327 (Elliptical Galaxy Evolution at
High Redshift: IR Imaging of 60 Distant Clusters)

       The Near Infrared Camera (Camera Two) was used to make infrared
observations high redshifted elliptical galaxies in galactic clusters
CL1004+474 and CL1007+474.  By measuring the structural properties of high
redshift cluster elliptical galaxies, it is hoped to resolve the
controversy regarding the age and formation history of bright cluster
ellipticals.  The observations were executed as scheduled, and no anomalies
were noted.

   1.10 Completed Three Sets of 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.

   1.11 Completed Four Sets of 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 stars (BD+04D3561,
LHS69, LHS3359 and HD219134). These stars are known to be within 10 parsecs
of the Sun.  The observations were executed as scheduled, and no anomalies
were noted.

   1.12 Completed WF/PC-2 6659 (A Search For Superplanets Around Weak T-
Tauri Stars)

       The WF/PC-2 was used to make observations in the 1 micron band of
the T-Tauri class star HBC633 in order to search for superplanets.  Weak
T-Tauri class stars are thought to have dissipated their circumstellar
disks recently, possibly by forming planetary systems.  The observations
were completed as planned, and no anomalies were reported.

   1.13 Completed WF/PC-2 6460 (Where are the Dozens of Predicted
Cataclysmic Variables in Globular Clusters?)

       The WF/PC-2 was used to make observations of the globular clusters
NGC-6171 and NGC-6093 in order to search for predicted cataclysmic
variables.  WF/PC-2 imaging of globular cluster cores provides us with a
unique opportunity to detect erupting cataclysmic variables because they
should be relatively common in the core region.  The observations were
executed as scheduled, and no anomalies were noted.

   1.14 Completed STIS/CCD/MA1/MA2 7096 (STIS MAMA Sensitivity on Axis)

       The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to
make observations of BD+28D4211 in order to measure STIS sensitivity as a
function of wavelength near the center of the detector for all
spectroscopic modes, and to check transmissions of all filters and filtered
slits.  The observations were executed as scheduled, and no anomalies were
noted.

   1.15 Completed Three Sets of 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.

   1.16 Completed WF/PC-2 7625 (WF/PC-2 Cycle 7 Earth Flats)

       The WF/PC-2 was used to make a series of Earth flat calibration
images.  These flat fields will allow mapping of the OTA illumination
pattern and will be used in conjunction with previous internal and external
flats to generate new pipeline superflats.  The observations were completed
as planned, and no anomalies were reported.

   1.17 Completed Two Sets of 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 bulges in spiral galaxies NGC-7177 and NGC-3031.
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.

   1.18 Completed Two Sets of STIS/CCD/MA1/MA2 7673 (STIS MAMA Sensitivity
and Focus Monitor)

       The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to
make observations of standard stars AGK+81D266 and BD+75D325 in order to
perform a MAMA sensitivity and focus monitoring program.  This is to
monitor sensitivity of each MAMA grating mode to detect any change due to
contamination or other causes.  The observations were executed as
scheduled, and no anomalies were noted.

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

       The WF/PC-2 was used to make photometric search observations of the
nearby star HD22049 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.

   1.20 Completed Two Sets of 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.

   1.21 Completed STIS/CCD/NIC/1/2/WF/PC-2 7568 (Spectroscopy of 3C Radio
Galaxy Optical Jets)

       The Space Telescope Imaging Spectrograph (CCD), the Near Infrared
Camera (Cameras One and Two) and the WF/PC-2 were all used to make
observations of the optical jets coming off of the radio galaxy 3C171.
These data will be used to determine the nature of the phenomena: whether
synchrotron jet radiation, entrained gas, ionized clouds or star-formation.
These data will also be used to study the inner populations and dynamics of
the galaxies.  The observations were completed as scheduled, and no
problems were reported.

   1.22 Completed NIC/1/2/3 7714 (Observations of the Rest-Frame Optical
Morphology of a Statistically Significant Sample of Normal Galaxies at
Redshift z~3.)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the galaxy 1417+5228.  It is planned to use 30 orbits
with NICMOS to study the rest-frame optical morphology of star-forming
galaxies at redshift z~3 selected with the Lyman-limit technique.  The
observations were executed as scheduled, and no anomalies were noted.

   1.23 Completed Four Sets of STIS/CCD 7783 (STIS Parallel Science)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations taken in parallel with the prime science.  The observations
were completed , and no problems were reported.

   1.24 Completed FGS 6486 (Orbits of Pre-Main Sequence Binaries)

       The FGSs were used in the TRANS mode to make astrometric
observations of the per-main sequence, binary star system SI-Tau in order
to help compute its orbital parameters.  The observations will be used to
make orbital maps of T-Tauri class stars.  From these orbital parameters
they will be able to derive the first reliable mass measurements for low
mass pre-main sequence stars.  The observations were completed as
scheduled, and no anomalies were reported.

   1.25 Completed NIC/2 7413 (The Dusty Environments of Protostars)

       The Near infrared Camera (Camera Two) was used to make observational
images of the dusty environment around protostar IRAS04108.  These
observations will address physical conditions in protostellar envelopes and
provide deeper insight into star and protoplanetary disk formation.  The
observations were completed as planned, and no problems were noted.

   1.26 Completed Two Sets of WF/PC-2 7619 (WF/PC-2 Cycle 7 Decontamination)

       The WF/PC-2 was used to conduct a Cycle 7 decontamination procedure.
Ultraviolet-blocking contaminants are removed, and hot pixels cured, by
warming the CCDs to +20C for 6 hours.  A variety of internal images are
taken before and after the decontamination in order to verify its success
and to monitor the instrument health.  The procedures were conducted as
scheduled, and no problems were reported.

   1.27 Completed WF/PC-2/STIS/MA1 7308 (HST FAR-UV Imaging and Spectra of
Jupiter's Aurora Coordinated With Galileo)

       The WF/PC-2 and the Space Telescope Imaging Spectrograph (MA1) were
used to make far-ultraviolet imaging and spectral observations of the
aurora near the north pole of the planet Jupiter at the same time as
scheduled Galileo spacecraft measurements of Jupiter's magnetospheric
properties and ultraviolet emissions over summer/fall 1997.  The
observations were completed as planned, and no anomalies were reported.

   1.28 Completed WF/PC-2 6431 (Determination of the Extragalactric
Distance Scale)

       The WF/PC-2 was used to make observations of the galaxy NGC-1425 to
be used in measuring the periods of Cepheid variable stars within this
galaxy.  This will allow for a more accurate estimate of the distances to
these galaxies through the period-luminosity relation for the Cepheid
stars.  The observations were executed as scheduled, and no anomalies were
noted.

   1.29 Completed NIC/1/2/3 7607 (NICMOS Photometric Monitoring Test)

       The Near Infrared Cameras (Cameras One, Two, and Three) was used to
conduct a photometric monitoring test by making observations of the
standard star P330-Cal.  The standard stars (one solar analog and one white
dwarf) were observed with NIC1 & NIC2 at six different wavelengths spanning
the NICMOS wavelength range.  The observations were completed as planned,
and no anomalies were reported.

   1.30 Completed 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 Markarian
galaxy (Markarian-04) in order to study its inner nuclear region.
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.

   1.31 Completed WF/PC-2 7618 (WF/PC-2 Cycle 7 Photometric Monitor UV/OPT STD)

       The WF/PC-2 was used to make observations of the standard star
GRW+70D582 as part of a Cycle 7 photometric monitoring program.  This
ultraviolet spectrophotometric standard star was observed in a variety of
filters and cameras to monitor the photometric stability and quantum
efficiency of WF/PC-2 from the far-ultraviolet to near-infrared.  The
observations were completed as scheduled, and no problems were reported.

   1.32 Completed NIC/1/2 7365 (Unscrambling the Near-Infrared Properties
of Young Planetary Nebulae)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the young planetary nebula IRAS21282.  Objects of this
class display a number of enigmatic features that have prevented a full
understanding of post-asymptotic giant branch stellar evolution.  The
observations were executed as scheduled, and no anomalies were noted.

   1.33 Completed STIS/CCD/MA1/MA2 7091 (STIS Pixel-To-Pixel Response
Stability)

       The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to
make observations of standard star BD8D4211 in order to determine the
pixel-to-pixel response stability.  This is to illustrate that STIS has the
capability of achieving signal to noise ratio of 100:1 in both Band 1
{115-170 nm} and Band 2 {165-310 nm}.  The observations were completed as
scheduled, and no anomalies were noted.

   1.34 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.

   1.35 Completed FGS 7678 (Monitor the Long-Term Stability of FGS-1R)

   The goal of these measurements is to monitor the internal positional
stability of the FGSs by measuring many stars in the M35 check field
repeatedly over a one year period.  These measurements determine the
stability characteristics of the FGS to allow an estimate of differential
corrections to OFAD and Plate Scale.  The observations were completed as
planned, and no problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 32
                                        Successful : 32

       At 265/005451Z, an acquisition defaulted to fine lock on FGS-3 only
when the FGS-1 scan step limit was exceeded.  HSTAR 6172 was written.

                          Scheduled Reacquisitions : 14
                                        Successful : 14

   2.2 FHST Updates:

                              Scheduled : 68
                             Successful : 68

   2.3 Operations Notes:

       From 264/232146Z until 264/232212Z, there was a recoverable loss of
32K realtime data due to a prime broadcast problem between GSFC and WSGT.
A TTR was written.

       There were no other significant problems over the weekend.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH