HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2056

PERIOD COVERED:  0000Z (UTC) 02/06/98 - 0000Z (UTC) 02/09/98

Daily Status Report as of 040/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Nine 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 WF/PC-2 6776 (A Comparative HST Imaging Study of Radio
Galaxies and Hosts)

       A clear understanding of the nature of the host galaxies of
radio-quiet quasars, radio-loud quasars and radio galaxies is of central
importance in any attempt to unify and relate the three main classes of
powerful active galaxies.  Existing HST studies of quasar hosts, whilst
producing many interesting new results, have yielded surprisingly little
hard information on the properties of the hosts themselves.  This imaging
study using the WF/PC-2 will remedy this situation by undertaking redder,
line-free observations of our three matched AGN samples.  The proposal
completed with no reported problems.

    1.3 Completed Nineteen Sets of NIC/2/3 7907 (NICMOS Pure Parallel
Winter 97-98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel spectrographic observations of sky regions when another
instrument is prime.  As described in 2.1, the acquisition for the eighth
iteration of this proposal failed, and the take data flag remained down for
two observations.  Otherwise, the observations were completed as planned,
and no further anomalies were reported.

   1.4 Completed Nine Sets of STIS/CCD 7911 (STIS Galactic Plane Pure
Parallel Program)

       The Space Telescope Imaging Spectrograph (CCD) was used to make low
galactic latitude survey observations in parallel with the prime science
observations.  Short exposures with the 50CCD imaging mode will provide the
wavelength zero-point calibration.  These data will be placed immediately
into the Hubble Data Archive.  The observations were executed as scheduled,
and no anomalies were noted.

   1.5 Completed Fifteen Sets of STIS/CCD 7910 (STIS Extragalactic Parallel
Survey)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
extragalactic slitless spectrographic observations as part of the parallel
high galactic latitude survey to search for emission line galaxies.  Data
was taken in parallel, and not subject to proprietary time.  As described
in 2.1, the acquisition for the eighth iteration of this proposal failed,
and the take data flag remained down for one observation.  Otherwise, the
observations were executed as scheduled, and no further anomalies were
noted.

   1.6 Completed NIC/2 7924 (NICMOS Coronagraphic Hole Location Re-Test)

       The Near Infrared Camera (Camera Two) was used to make observations
of object NGC-2264 in order to conduct a NICMOS coronagraphic hole location
re-test.  This is designed to effectively test the coronagraph hole
location in the flight software.  Observations will be taken with a bright
object in the acquisition box and the memory will be downloaded for the
acquisition images.  The observations were executed as scheduled, and no
anomalies were noted.

   1.7 Completed NIC/1/2/3 7847 (Near-IR Photometry of Candidate Companion
to Proxima Centauri)

       The Near Infrared Camera (Camera Two) was used to make observation
of star GL905 which is a companion to Proxima Centauri.  This star may be a
low luminosity companion to the closest star to the Sun.  The observations
were completed as planned, and no anomalies were reported.

   1.8 Completed Two Sets of STIS/CCD 7803 (Daily Darks to Update
Acquisition Bad Pixel Table Part III)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
daily dark calibration updates.  These daily darks are intended to identify
hot pixels for update to the acquisition on-board FSW hot pixel table.
Daily hot pixel lists can also be used for science data analysis.  The
observations were completed as planned, and no anomalies were reported.

   1.9 Completed Three Set of NIC/2 7890 (The Youngest Stars: ,
Circumstellar Structure, Binary and Origin of Jets)

       The Near Infrared Camera (Camera Two) was used to make observations
of the young stars HH34-IRS, HH199-IRS and L1551-NE which have
circumstellar structure, and jets.  The purpose is to obtain broadband 2.2
Mum images of the compact cavities illuminated by Herbig-Haro (HH) energy
sources, and to obtain narrowband H-2 images to study how the HH jets
originate at their sources.  The observations were completed as planned,
and no problems were reported.

   1.10 Completed WF/PC-2 7384 (Probing the Fine-Scale Structure and Colors
of Interstellar "Cirrus" Clouds)

       The WF/PC-2 was used to make observations of the NEB-104505 in order
to probe the fine-scale structure and colors of interstellar "cirrus"
clouds.  The ubiquitous nature of Galactic "cirrus" clouds make them both:
{1} accessible targets for the study of the properties of interstellar dust
grains, and {2} sources of confusion in investigations of distant objects
{e.g. galaxies, clusters of galaxies} at low surface brightness levels.
The observations were completed as planned, and no problems were reported.

   1.11 Completed WF/PC-2 7387 (T-Tauri Star Snapshot Survey)

       The WF/PC-2 was used to make observations of the star MWC-480 as
part of a T-Tauri class star survey.  The observations were executed as
scheduled, and no anomalies were noted.

   1.12 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.

   1.13 Completed NIC/2 7848 (The Nature of Particle Acceleration in the
jet of 3C273)

       The Near Infrared Camera (Camera Two) was used to make observations
of the jets in object 3C273.  Ground and space based observations over the
last years have revealed a complex structure in the jet in 3C 273.  The
observations were executed as scheduled, and no anomalies were noted.

   1.14 Completed Four Sets of WF/PC-2 7909 (POMS Test Proposal: WF II
Parallel Archive Proposal)

       The WF/PC-2 was used to make parallel observations as part of the
POMS test proposal.  This test proposal is designed to simulate scientific
plans.  The observations were completed as planned, and no problems were
reported.

   1.15 Completed Six Sets of STIS/CCD 7910 (STIS Extragalactic Parallel
Survey)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
extragalactic slitless spectrographic observations as part of the parallel
high galactic latitude survey to search for emission line galaxies.  Data
was taken in parallel, and not subject to proprietary time.  The
observations were executed as scheduled, and no anomalies were noted.

   1.16 Completed Four Sets of 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 Three Sets of STIS/CCD 7905 (CCD Acq Checkout for FSW Hot
Pixel Fix)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the objects GD153, PKS1225-31 and 3C268.3 in order to check
out the hot pixels in the CCDs.  This is to test the unit's capability to
perform pointing at diffuse sources correctly.  Also, it is to check the
ACQ/PEAK to make certain it has not been adversely affected by the flight
software update.  The observations were completed as planned, and no
anomalies were reported.

   1.18 Completed NIC/1/2 7218 (Nearby Starburst Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the nearby starbursting galaxy NGC-1614.  This proposal
encompasses a study of both the stars and interstellar material in
starburst nuclei which will test ideas about the triggering of starbursts
and whether starbursts propagate outwards in a nucleus.  The observations
were completed as planned, and no anomalies were reported.

   1.19 Completed WF/PC-2 6491 (The Optical Structure and Environments of
Z~1 3CR Quasars)

       The WF/PC-2 was used to make observations of radio galaxy/ quasar
3C69.1 in order to study its optical stricture and environments.  This
should obtain better statistics on correlations seen in the Cycle 4 data,
such as the association of linear galaxies with other 3CR galaxies and
quasars.  The observations were executed as scheduled, and no anomalies
were noted.

   1.20 Completed NIC/1 7422 (NICMOS observations of the gravitational lens
1608+656)

       The Near Infrared Camera (Camera One) was used to make observations
of the gravitation lens system GAL-1609+656 in order to measure the light
distribution of the lens while minimizing the effects of extinction.  This
information is needed to refine the lens' mass model.  The observations
were completed as planned, and no problems were reported.

   1.21 Completed STIS/CCD 7660 (STIS to FGS Alignment Check)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of object NGC-188 as part of an FGS alignment check to
re-verify the STIS aperture and slit locations, and check the
transformation of the STIS CCD detector reference frame to the FGS
reference frame, after the FGS-FGS update.  The observations were completed
as planned, and no anomalies were reported.

   1.22 Completed STIS/CCD 7711 (STIS CCD G750L Fringing Flats.)

       The Space Telescope Imaging Spectrograph (CCD) was used to
investigate and monitor the STIS CCD flat-field fringing in the G750L
grating at its nominal wavelength setting {7751A}.  WAVECALs were also
taken at the same gain and wavelength setting.  Typical S/N = 100 for each
integration, and gain = 4 on each.  The observations were executed as
scheduled, and no anomalies were noted.

   1.23 Completed WF/PC-2 6838 (Dynamical Properties of Distant Field Galaxies)

       The WF/PC-2 was used to make observations of distant galaxies
contained in a location known as Field-0017.  A sample of several hundred
field galaxies to I = 24 (c.f. toI=22 z~0.5 from Lilly et al. 1995) is
being observed with the Keck telescope in a major new survey.  This HST
observational series is designed to match the field-of-view of the Keck
multiple-object spectrograph.  The observations were completed as
scheduled, and no problems were noted.

   1.24 Completed WF/PC-2 6855 (The Disks Around Young Stellar Objects)

       The WF/PC-2 was to be used to make observations of the disk
surrounding the young stellar object XZ-Tau.  Circumstellar material has
been detected at 1.3 mm around about 50% of the young (T<10^6 yr) stellar
objects in the Taurus-Auriga molecular cloud.  The observations permit an
estimate of the material's spatial extent, mass and temperature.  As
described in 2.1, the acquisition for this proposal failed, and the take
data flag remained down for four observations.

   1.25 Completed STIS/CCD 7803 (Daily Darks to Update Acquisition Bad
Pixel Table Part III)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
daily dark calibration updates.  These daily darks are intended to identify
hot pixels for update to the acquisition on-board FSW hot pixel table.
Daily hot pixel lists can also be used for science data analysis.  The
observations were completed as planned, and no anomalies were reported.

   1.26 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-772.  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.

   1.27 Completed FGS 6880 (Parallax of RW Tri)

       The FGSs were used to make astrometric observations of the variable
star RW-Tri.  RW-Tri is an old nova for which a precise parallax would
increase the validity of any astrophysical investigations.  The
observations were completed as planned, and no problems were reported.

   1.28 Completed FGS 6885 (L726-8/ UV-Ceti)

       The FGSs were used in both the POS and TRANS modes to make
astrometric observations of the star UV-Ceti. This is to look for short
period, low mass companions in orbit around the star. The observations were
completed as planned, an no anomalies were reported.

   1.29 Completed FGS 7491 (The Masses of the Brown Dwarf Candidate GL 623B)

       The FGSs were used to conduct astrometry at 1-mas accuracy of faint
companions to nearby M-dwarfs.  This is the most productive direct method
to determine accurate masses of stars near the end of the main sequence.
>From preliminary FGS results we estimate the mass of GL 623B as 0.10 solar
masses, placing both near the stellar/substellar border.  Such a mass
determination for GL 623B should establish conclusively its nature as star
or substellar object.  The observations were executed as scheduled, and no
anomalies were noted.

   1.30 Completed WF/PC-2 6435 (A WF/PC-2 Search for Surviving Binary
Companions in SN Ia Remnants)

       The WF/PC-2 was used to make observations of the class Ia super nova
remnant SN1006-Cen in order to search for surviving binary companions.  The
type Ia supernovae {SNe Ia} are widely believed to be explosions of white
dwarfs undergoing binary mass accretion.  The observations were completed
as planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 23
                                        Successful : 22

       The acquisition scheduled at 039/0652Z failed to RGA hold mode due
to the search radius limit being exceeded.  HSTAR 6340 was written.  The
proposals described in 1.3, 1.5, and 1.24 were affected by this failure.

                          Scheduled Reacquisitions : 20
                                        Successful : 20

   2.2 FHST Updates:

                              Scheduled : 46
                             Successful : 46

   2.3 Operations Notes:

       The STIS MAMA1 reset at 038/020132.  The error message was reset per
ROP NS-12 at 038/024416.  The MAMA1 was recovered via the SMS.  There was
no scientific impact.

       The STIS MAMA2 reset at 038/034425Z while MAMA2 was operating in low
voltage.  The error message was reset per ROP NS-12 at 038/040553Z.  The
MAMA2 was recovered via the SMS.  Science was not impacted.

       STIS software patches were performed at 039/0144Z to support the
third iteration of STIS 7905, described in 1.17.  The patches were restored
at 039/1905Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH