HUBBLE SPACE TELESCOPE

       DAILY REPORT #2626

PERIOD COVERED:  0000Z (UTC) 05/17/00 - 0000Z (UTC) 05/18/00

Daily Status Report as of 139/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed Three Sets of WF/PC-2 8460 (Cycle 8 Supplemental Darks pt2/3)

        The WF/PC-2 was used to obtain three dark frames every day to 
provide data for monitoring and characterizing the evolution of hot 
pixels.  During the first iteration of this proposal, the loss of lock 
described in yesterday's report and HSTAR 7605 occurred.  Otherwise, the 
observations completed with no further reported problems.

    1.2 Completed Two Sets pf STIS/CCD/MA1 8241 (A Snapshot Survey of 
Interstellar Absorption Lines)

        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to 
make high resolution Echelle spectrographic observations of the standard 
ultraviolet stars HD64109 and HD91983 as part of a snapshot survey of 
interstellar absorption lines.  A wavelength calibration image was also 
taken.  The observations were executed as scheduled, and no anomalies were 
noted.

    1.3 Completed WF/PC-2 8805 (POMS Test Proposal: WFII Parallel Archive 
Proposal Continuation)

        The WF/PC-2 was used to perform a generic target version of the 
WFPC2 Archival Pure Parallel program.  The program will be used to take 
parallel images of random areas of the sky, following the recommendations 
of the Parallels Working.  The proposal completed with no reported problems.

    1.4 Completed STIS/MA1 8433 (Angle Corrections for MAMA)

        The Space Telescope Imaging Spectrograph (MA1) was used to run a 
test in order to provide incidence angle corrections for MAMA observations 
using non-concentric slits.  The proposal completed with no reported problems.

    1.5 Completed WF/PC-2 8247 (Hidden New-Born Massive Stars in Compact H 
II ``Blobs'' of the Large Magellanic Cloud)

        The WF/PC-2 was used to perform high spatial resolution imaging to 
resolve very tight clusters of massive stars at birth in the Large 
Magellanic Cloud.  These are the youngest massive stars accessible to 
direct observations at ultraviolet and optical wavelengths.  The 
observations completed nominally.

    1.6 Completed STIS/CCD 8437 (Dark Monitor-Part 2 C8)

        The Space Telescope Imaging Spectrograph (CCD) was used to monitor 
the darks.  The proposal completed nominally.

    1.7 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.

    1.8 Completed STIS/CCD 8439 (Bias Monitor-Part 2 C8)

        The Space Telescope Imaging Spectrograph (CCD) was used to monitor 
the bias in the 1x1, 1x2, 2x1, and 2x2 bin settings at gain=1, and 1x1 at 
gain = 4, to build up high-S/N superbiases and track the evolution of hot 
columns.  The proposal completed with no reported problems.

    1.9 Completed WF/PC-2 8118 (Snapshot Survey of Galactic Globular Clusters0

        The WF/PC-2 was used to make observations of crowded centers of 
globular clusters {GCs} which have produced intriguing discoveries of new 
phenomena, most of which are not understood theoretically. This is a 
continuation of a Cycle 7 snapshot proposal, to extend such work to a much 
larger portion of the Galactic GC system.  The observations completed 
nominally, with no reported problems.

    1.10 Completed STIS/CCD 8808 (POMS Test Proposal: STIS Non-Scripted 
Parallel Proposal Continuation III)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
non-scripted, parallel observations as part of a POMS test proposal.  The 
observations completed with no anomalous activity.

    1.11 Completed WF/PC-2 8173 (Alignment and Evolution of Redshift One 
Radio Galaxies)

        The WF/PC-2 was used to observe galaxies associated with powerful 
distant radio sources which are the most massive ellipticals known at early 
cosmic epochs, and are also uniquely important for understanding the 
physics of AGN and the interactions between the radio source and its 
environment.  The observations completed with no reported problems.

    1.12 Completed STIS/CCD 8549 (POMS Test Proposal: Non-Scripted Parallel 
Proposal Continuation I)

        The Space Telescope Imaging Spectrograph (CCD) was used to make low 
galactic latitude, non-scripted parallel observations as part of a POMS 
test proposal.  The observations were completed as planned, and no 
anomalies were reported.

    1.13 Completed STIS/CCD 8176 (Confirmation and Characterization of 
Brown Dwarfs and Giant Planets from NICMOS 7226/7227)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
confirmation and characterization observations of object GL503.2B.  This is 
a continuation of NICMOS 7226/7227 using the STIS.  A systematic search for 
giant planet and brown dwarf companions to stars in the solar neighborhood 
was the cornerstone of the NICMOS IDT's Environments of Nearby Stars {EONS} 
program.  The observations were completed as planned, and no anomalies were 
reported.

    1.14 Completed S/C 8139 (Probing an Ancient Thermonuclear Runaway on a 
White Dwarf in a Dwarf Nova)

        Evidence was unexpectedly discovered, based upon two GHRS G160M 
spectra, of greatly elevated abundances of odd-numbered nuclei Phosphorus 
and Aluminum, as well as a Nitrogen-to-Carbon ratio of 10 in the 
photosphere of the white dwarf in the dwarf nova VW Hyons.  This proposal 
intends to {1} determine the first chemical abundances of many odd-numbered 
proton capture species; {2} determine a accurate mass for the white dwarf 
and; {3} probe changes in the accretion belt and surface abundances as a 
function of time since a superoutburst.  The proposal completed nominally.

    1.15 Completed STIS/MA1/MA2 8144 (UV Spectroscopic Snapshots of FUSE 
AGN Targets)

        The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was 
used to make far ultraviolet spectrographic snapshot observations of the 
FUSE AGN target NGC3783.  This object is currently scheduled to be observed 
by the Far Ultraviolet Spectroscopic Explorer {FUSE}.  The observations 
were executed as scheduled, and no anomalies were noted.

    1.16 Completed STIS/CCD/MA1/MA2 8280 (Origins, Structure and Evolution 
of Magnetic Activity in the Cool Half of the H-R Diagram: A STIS Survey)

        The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was 
used to make observations of star HD223460 to carry out part of a major 
ultraviolet spectral survey of "coronal" late-type stars.  A wavelength 
calibration image was also taken.  The observations were executed as 
scheduled, and no anomalies were noted.

    1.17 Completed WF/PC-2 8459 (Decontaminations and Associated 
Observations Pt. 2/2)

        The WF/PC-2 was used to perform the monthly decons.  Also included 
are instrument monitors tied to decons: photometric stability check, focus 
monitor, pre- and post-decon internals {bias, intflats, kspots, & darks}, 
and UV throughput checks.  The observations were completed nominally.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:
       Scheduled Acquisitions: 9
Successful: 9

  Scheduled Re-acquisitions: 7
Successful: 7

    2.2 FHST Updates:
Scheduled: 21
Successful: 21

2.3 Operations Notes:

HSTAR  7606: + wing Solar Array Drive Motor (SADM) shaft temperature sensor 
(BE2%DMT3) flagged out of limit high (91.5181 deg C) for 1 sample 
@139/08:52z.  SADM temperature ranged between 85 and 88.5 C.  Refer to CCS 
DGRIMES SADMTEMP Report 090242286.  At time of violation the spacecraft was 
in orbit night- no solar array slew taking place.


3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW