HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2264

PERIOD COVERED:  0000Z (UTC) 12/04/98 - 0000Z (UTC) 12/07/98

Daily Status Report as of 341/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Thirty One Sets of NIC/1/2/3 7963 (Darks: Warming Up)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
monitor the detector dark current during the interval between the end of
science observations and the exhaustion of cryogen and subsequent warming
of the dewar to > 100K.  The observations were completed as planned, and no
anomalies were noted.

   1.2 Completed Six Sets of STIS/CCD 7948 (CCD Dark and Bias Monitor --
Cont. to Dec. 98)

       The Space Telescope Imaging Spectrograph (CCD) was used to measure
CCD dark current and bias rates for the two supported amplifier settings
{GAIN=1 and GAIN=4} in order to gather data for making superdarks and
superbiases.  The data will be used to track the growth of hot pixels on
the CCD in general and within the various target acquisition apertures
specifically.  The observations were executed as scheduled, and no
anomalies were noted.

   1.3 Completed Eight Sets of WF/PC-2 7713 (WF/P-2 Cycle 7 Supplemental
Darks pt3/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
This dark calibration program obtains three dark frames every day to
provide data for monitoring and characterizing the evolution of hot pixels.
The observations were completed as planned, and no anomalies were noted.

   1.4 Completed WF/PC-2 6356 (SNAPSHOT Survey of Ultraluminous Infrared
Galaxies)

       The WF/PC-2 was used to make observations of galaxy Gal-202521 as
part of a survey of ultraluminous infrared galaxies.  The nature of
ultraluminous infrared galaxies has generated considerable controversy.
The two main issues are: {1} are they powered by violent bursts of star
formation or by hidden quasars?  {2} are interactions and mergers
invariably involved?  The observations were executed as scheduled, and no
anomalies were noted.

   1.5 Completed WF/PC-2 6351 (Resolving SDB Binary Systems)

       The WF/PC-2 was used to make high resolution image of the sdB class,
binary system STAR-01382 in order to try and resolve its two individual
stars.  Evidence has accumulated that a large fraction (if not all) of the
sdB class stars are found in binary systems.  The observations were
executed as scheduled, and no anomalies were noted.

   1.6 Completed Two Sets of STIS/CCD 7310 (The Interaction of Accretion
Disks with Protostellar Binaries)

       The Space Telescope Imaging Spectrograph (CCD) was used to study the
interaction of the accretion disk with the protostellar binary systems
040047+260 and FQ-Tau.  This should determine how the accretion disk
interacts with stars in young binary systems and will measure the rates
that mass accumulates onto each component of the pair.  A wavelength
calibration image and a CCD flat calibration image were also taken.  The
observations were executed as scheduled, and no anomalies were noted.

   1.7 Completed Twelve Sets of NIC/1/2/3 7961 (Flats: Warming Up)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
monitor the flat fields during the interval between the end of science
observations and the exhaustion of cryogen and subsequent warming of the
dewar to > 100K.  These flats will provide a monitor for particulate
comtamination and detector lateral position {from the coronagraphic spot
and FDA vignetting}.  As described in HSTAR 6799 and 2.1, the acquisition
for the second iteration of this proposal failed, leaving the take data
flag down, and affecting nine observations.  Otherwise, the proposal
completed with no further reported problems.

   1.8 Completed WF/PC-2 6629 (Observations of a New Sample of
Gravitational Lens Candidates )

       The WF/PC-2 was used to make observations of the gravitational lens
candidate QSO-204720.  This object was identified in the first and second
phases of the Cosmic Lens All-Sky Survey done with the Very Large Array
radio telescope.  The observations were executed as scheduled, and no
anomalies were noted.

   1.9 Completed Eight Sets of STIS/CCD 8062 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude observations taken in parallel with the prime science
observations.  As described in HSTAR 6799 and 2.1, the acquisition for the
second iteration of this proposal failed, leaving the take data flag down,
and affecting one observation.  Otherwise, the observations were completed
as planned, and no further problems were reported.

   1.10 Completed Nine Sets of STIS/CCD 8084 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
non-scripted parallel Low galactic latitude observations as part of POMS
test proposal.  As described in HSTAR 6799 and 2.1, the acquisition for the
second iteration of this proposal failed, leaving the take data flag down,
and affecting one observation.  Otherwise, the observations were executed
as scheduled, and no further anomalies were noted.

   1.11 Completed WF/PC-2 6347 (A Search for Jets in Planetary Nebulae)

       The WF/PC-2 was used to make observations of the planetary nebulae
(class PNe) NGC-6881 in order to search for the presence of possible narrow
jets.  The current model for PNe formation indicates that jets are an
unexpected phenomena, yet there is a growing body of circumstantial
evidence that suggests narrow jets are common feature in PNe.  The
observations were completed as scheduled, and no anomalies were noted.

   1.12 Completed NIC/2/3 7962 (NICMOS Warm-up Focus Monitoring)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations of the globular cluster and nebula of NGC-3603 as part of the
NICMOS warm-up focus monitoring.  This proposal is used to determine and
monitor the optimal focus settings for NIC/2 and NIC/3 during the dewar
warm-up period at the end of 1998.  The observations were executed as
scheduled, and no anomalies were noted.

   1.13 Completed WF/PC-2 6754 (Imaging of the HH 30 Circumstellar Disk and
Jets)

       The WF/PC-2 was to be used to make observations of the disk and jets
of the Herbig-Harrow Object HH-30.  Recent Hubble Space Telescope images
had revealed HH-30 to be a prototype young stellar object system possessing
an optically thick circumstellar absorption disk extended perpendicular to
highly collimated bipolar jets.  As described in HSTAR 6799 and 2.1, the
acquisition for the second iteration of this proposal failed, leaving the
take data flag down, and affecting three observations.

   1.14 Completed NIC/1/2/3 7266 (High-Resolution IR and Optical Imaging of
the Fields Around a Large Sample of Z > 4.5 Quasars)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the quasar BR1202-072 in order to make high-resolution
infrared and optical imaging of the fields around the quasars.  This object
appears to be very primitive and may represent early stages in the galaxy
formation process.  The observations were completed as planned, and no
anomalies were reported.

   1.15 Completed Five 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.

   1.16 Completed NIC/1/2/3 7336 (Cosmological Parameters Omega and Lambda
From High-Redshift Type Ia Supernovae)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the high redshifted Type Ia supernova SN98122.  HST
can make a direct measurement of the cosmological parameters, Omega,
Lambda, and curvature, using Type Ia supernovae as calibrated "standard
candles."  The observations were executed as scheduled, and no anomalies
were noted.

   1.17 Completed STIS/CCD/MA1 7747 (The Relationship Between Lyman-alpha
Clouds and Galaxies at Z<0.3)

       The Space Telescope Imaging Spectrograph (CCD and MA1) was used to
make observations of Lyman-Alpha clouds in galaxy/QSO PG0953+415.  A
wavelength calibration image was also taken.  The observations were
executed as scheduled, and no anomalies were noted.

   1.18 Completed FOC/96 7923 (FOC F/96 Turnon)

       The Faint Object Camera (f/96) was used to take an internal flat and
a dark to ensure that the 30-day limit for the FOC is not exceeded.  The
observations were executed as scheduled, and no anomalies were noted.

   1.19 Completed STIS/CCD 7361 (The Nature of Nuclear Activity in Nearby
Galaxies)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the nuclear region of galaxy N2787.  The high resolution
spectra will be used to search for broad components in H-Alpha and for
velocity gradients, indicative of gas rotation or other ordered motions.  A
wavelength calibration image was also taken.  The observations were
executed as scheduled, and no anomalies were noted.

   1.20 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section
Only): Cycle 4)

        This proposal was executed as scheduled, and no anomalies were noted.

   1.21 Completed Three Sets of WF/PC-2 8061 (POMS Test Proposal: WF-II
Backup Parallel Archive Proposal)

       This is a POMS test proposal designed to simulate scientific plans.
The proposal was executed as planned, and no anomalies were reported.

   1.22 Completed WF/PC-2 6564 (Detailed Morphology of a Lyman-Alpha Galaxy
at Z=2.3)

       The Wide Field Planetary Camera-2 was used to make observations of
the Lyman-Alpha emitting galaxy PHL957, which is at a distance of Z = 2.3,
in order to study its detailed morphology.  The identification and detailed
study of galaxies at high redshift remains the most direct path to
understanding galaxy formation and evolution.  The observations were
executed as scheduled, and no anomalies were noted.

   1.23 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 GH-Tau in order to study the location of disk 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 observations were
completed as scheduled, and no anomalies were noted.

   1.24 Completed WF/PC-2 7391 (NGC 2363 V1: A Rare Case of Major LBV Eruption)

       The WF/PC-2 was used to make images of NGC-2363 which contains a
rare case of major luminous blue variable (LBV) eruption.  Only a handful
of major LBV eruptions have been observed, including those of P Cygni in
the 17^th century and Eta Carina between 1840 and 1860.  The observations
were executed as scheduled, and no anomalies were noted.

   1.25 Completed WF/PC-2 6362 (Supernova Host Galaxy)

       The WF/PC-2 was used to make observations of the supernova host
galaxies GAL-122852 and GAL-105047.  The observations were executed as
scheduled, and no anomalies were noted.

   1.26 Completed WF/PC-2 7278 (The Connection Between The Obscuring Torus
and the Masing Disk in H-20 Me)

       The WF/PC-2 was used to investigate the connection between the
molecular torus and the emission line gas in a complete sample of H-2O
megamasers.  The proposal completed nominally with no reported problems.

   1.27 Completed Two Sets of WF/PC-2 6651 (WLR Distances from Accurate
Multi-Color WF/PC-2 Photometry of A & B Supergiants in M-31 and M-33)

       The WF/PC-2 was used to make multi-color photometric observations of
NGC-598 (a.k.a., M-33).  This is to study A and B supergiant stars in M-31
and M-33 with a precision far exceeding that of existing ground-based
estimates.  The observations were completed as planned, and no problems
were reported.

   1.28 Completed STIS/CCD 7912 (STIS Parallel Archive Proposal - Nearby
Galaxies - Imaging and Spectroscopy)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
parallel observations of nearby galaxies.  This survey will be useful to
study the star formation histories, chemical evolution, and distances to
these galaxies.  These data will be placed immediately into the Hubble Data
Archive.  The observations were completed as scheduled, and no problems
were reported.

   1.29 Completed FGS 7677 (Monitor the Long Term Stability of FGS-3)

       The goal of these measurements is to monitor the internal positional
stability of FGS3 by measuring many stars in the M35 check field repeatedly
over a one year period.  The results of these measurements are the
stability characteristics of FGS3 which allow an estimate of differential
corrections to OFAD and plate scale.  The measurements were completed as
scheduled, with no reported anomalies.

   1.30 Completed STIS/CCD 7475 (The Chemical Content of the Universe at Z<
1.6)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the background quasar Q0957+5608.  Damped Lyman-Alpha
absorption systems provide a means of directly probing the chemical content
of the deep universe.  A wavelength calibration image was also taken.  The
observations were completed as planned, and no problems were reported.

   1.31 Completed STIS/CCD 7672 (STIS CCD Sensitivity Monitor)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of standard star AGK+81D266 in order to monitor the
sensitivity of each CCD grating mode to detect any change due to
contamination or other causes.  The observations were completed as
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 23
                                        Successful : 22

       As documented in HSTAR 6799, the acquisition at 338/114006Z failed
to RGA control when the search radius limit was exceeded on FGS-2.  The
proposals described in 1.7, 1.9, 1.10, and 1.13 were affected.

                          Scheduled Reacquisitions : 21
                                        Successful : 21

   2.2 FHST Updates:

                              Scheduled : 63
                             Successful : 62

       Per HSTAR 6798, the roll delay update scheduled for 338/181431Z
failed.  Subsequent acquisitions succeeded.

   2.3 Operations Notes:

       Using ROP SR-1, the SSR EDAC error counter was cleared thirteen times.

       Per ROP -1, the MA transmitter was turned off and on four times, and
the SSA transmitter was turned off and on once.

       Three TTRs were written for a total of eighteen IP data hits.

       At 338/123556Z was a NICMOS EDAC single bit error.  HSTAR 6796 was
written.  The ground system limit was raised to 59.

       The STIS MCE-1 reset at 339/125500Z while in a SAA contour and while
the high voltage was off.  The STIS flight software error counter was reset
at 339/1302Z.  The MCE-1 will be recovered at 342/154828Z, the time of the
next MAMA-1 high voltage on command.

       The NICMOS internal log was dumped at 39/1912Z.

       ESTR-2 reconditioning was performed at 341/0430Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH