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Subject: Corrected Daily Report #2089 03/28/98

            ***See 2.3 for corrections to STIS status***

                      HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2089

PERIOD COVERED:  0000Z (UTC) 03/26/98 - 0000Z (UTC) 03/27/98

Daily Status Report as of 086/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed NIC/2 7226 (Search for Massive Jupiters)

       The Near Infrared Camera (Camera Two) was used to make a corographic
search for massive planets around nearby, young main sequence star Rosat7.
Because of the extreme youth of this object, any low-mass brown dwarf and
planetary companions will still be in a higher luminosity phase and thus
easily detectable.  A dark calibration image was also taken.  The
observations were executed as scheduled, and no anomalies were noted.

   1.2 Completed TWo Sets of WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental
Darks pt2/3)

       The WF/PC-2 was used to make a series of Cycle 7 supplemental
calibration darks.  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 executed as scheduled, and no
anomalies were noted.

   1.3 Completed NIC/1/2/3 7245 (Galaxy Evolution in Rich Clusters)

       The WF/PC-2, the Near Infrared Camera (Cameras One, Two and Three)
and Near Infrared Camera were used to make observations of the galactic
cluster Abell-1795.  The purpose is to study the morphological and spectral
evolution of galaxies within this cluster environment.  A dark calibration
image was also taken.  The observations were completed as planned, and no
problems were reported.

   1.4 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.

   1.5 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 Ones, Two and Three) was used to
make high resolution infrared observations of the nearest active galaxy
Markarian-1 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.

   1.6 Completed STIS/CCD 7926 (CCD Dark and Bias Monitor -- Continued)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
several dark and bias calibration observations.  This is 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.  These observations will also 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.

   1.7 Completed STIS/CCD 7593 (CCD Spectroscopy of the Red Rectangle)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
spectrographic images of star HD44179 (a.k.a., The Red Rectangle).  This
star is a central star with dense, dusty disk and surrounding
optical/molecular envelope.  The high spatial resolution and coronographic
capabilities of the STIS will be exploited to investigate the molecular and
dust formation processes in the nebula.  A wavelength calibration image was
also taken.  The observations were executed as scheduled, and no anomalies
were noted.

   1.8 Completed Three 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.  The observations were completed as planned, and no
anomalies were reported.

   1.9 Completed WF/PC-2 7622 (WF/PC-2 Cycle 7 Internal Monitor)

       The WF/PC-2 was used to make a set of Cycle 7 internal monitoring
calibration measurements.  A variety of internal exposures are obtained in
order to provide a monitor of the integrity of the CCD camera electronics
in both bays {gain 7 and gain 15}, a test for quantum efficiency in the
CCDs, and a monitor for possible buildup of contaminants on the CCD
windows.  A bias calibration and an internal flat calibration image were
also taken.  The observations were executed as scheduled, and no anomalies
were noted.

   1.10 Completed WF/PC-2 7385 (Low-Mass Halo Binaries)

       The WF/PC-2 was used to make observations of the low mass, halo,
binary, {Population II}, M-type, sub-dwarf, star LHS174.  This star is too
faint to be resolved through ground-based speckle interferometry, thus HST
represents the only means of probing separations.  The observations were
completed as planned, and no anomalies were reported.

   1.11 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.

   1.12 Completed NIC/2 7213 (High Resolution Imaging of "Warm"
Hyperluminous Infrared Galaxies)

       The Near Infrared Camera (Camera Two) was used to make high
resolution infrared images of the "warm" hyperluminous galaxy F15307+325 in
order to expand our knowledge of their complicated relationship with the
QSO phenomenon.  The observations were executed as scheduled, and no
anomalies were noted.

   1.13 Completed Two Sets of STIS/CCD 7908 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
calibration observations as part of the POMS Test Proposal.  This was a
STIS non-scripted parallel proposal.  The observations were completed as
planned, and no problems were reported.

   1.14 Completed NIC/1/2 7329 (The Nature of the Damped LyAlpha Absorbers
-- A New Study of Young Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the young galaxy Q1209+0919 in order to study the nature of
its damped Lyman-Alpha Absorbers.  The damped Lyman-Alpha absorption line
systems {DLAs}, occasionally found in quasar spectra, provide one of only a
few practical methods of detecting and studying significant numbers of
galaxies at high redshifts.  The observations were executed as scheduled,
and no anomalies were noted.

   1.15 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 BD+20D2465.
This star is known to be within 10 parsecs of the Sun.  The observations
were executed as scheduled, and no anomalies were noted.

   1.16 Completed STIS/CCD 7809 (Prism Sensitivity and Faint Calibration
Standard Extension)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
prism sensitivity and faint calibration standard extension observations
using faint white dwarf star HS2027+065.  This program is the basic
sensitivity measurement for the prism.  It is run once a year.  Sensitivity
measurements are done for the prism at a central wavelength of 1200 using
the 25MAMA and the 2x2 apertures.  Cross-calibration via all first-order L
gratings is done as well.  The observations were completed as planned, and
no problems were noted.

   1.17 Completed 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.

   1.18 Completed WF/PC-2 6540 (Imaging Circumstellar Nebulae Around
Luminous Blue Variables in the Magellanic Clouds)

       The WF/PC-2 was used to make observations of the curcumstellar
nebula around the luminous blue variable star HD269929 which is located in
one of the Magallanic Clouds.  The objectives are to study the distribution
of the ionized gas and dust in order to determine the morphology and
physical properties of the circumstellar nebulae, by observing them in a
narrow, line-free V continuum filter and in the H Alpha emission line.  The
observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 10
                                        Successful : 10

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 21
                             Successful : 21

   2.3 Operations Notes:

       Utilizing ROP SR-1, the EDAC error counter was cleared at 085/1416Z,
085/1541Z, 085/2058Z, and 0860249Z.

       At 085/215626Z, while in a ZOE, the MAMA2 MCE2 high voltage was
autonomously turned off when the event threshhold voltage limit was
exceeded.  HSTAR 6411 was written.  ROP NS-14 was utilized to perform a
dump of the STIS error log at 086/0248Z.  The ROP has not yet been
completed, and STIS is not yet recovered.

       As described in HSTAR 6412, the STIS instrument suspended at
085/235312Z.  A STIS memory dump was executed at 086/0321Z.

       It is expected that STIS will be recovered later this morning after
analyses are completed.  Science proposals affected by the suspend will be
reported in the next scheduled report.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH