HUBBLE SPACE TELESCOPE

       DAILY REPORT #2498

PERIOD COVERED:  0000Z (UTC) 11/10/99 - 0000Z (UTC) 11/11/99

Daily Status Report as of 315/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed Two Sets of STIS/CCD 8408 (STIS CCD Dark Monitor C8)

        The Space Telescope Imaging Spectrograph (CCD) was used to make a 
CCD bias calibration observation.  This is to monitor the darks for the 
STIS CCD.  The observations were executed as scheduled, and no anomalies 
were reported.

    1.2 Completed Three Sets of WF/PC-2 8443 (WF/PC-2 Cycle-8 Supplemental 
Darks pt1/3)

        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.  The observations were completed as planned, and no problems were 
reported.

    1.3 Completed WF/PC-2 8278 (High Precision Photometry of the Core of M13)

        The WF/PC-2 was used to obtain highly precise main sequence 
photometry in V and I in the core of the globular cluster M13.  The data 
will be used to search for a binary sequence, and to obtain highly accurate 
main sequence ridge lines and a deep luminosity function in the core 
regions of the cluster.  The observations completed with no reported problems.

    1.4 Completed Two Sets of STIS/CCD 8549 (POMS Test Proposal: STIS 
Non-scripted Parallel Proposal Continuation III)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
high galactic latitude observations as part of a non-scripted POMS Test 
Proposal. The observations were completed as scheduled, and no problems 
were reported.

    1.5 Completed STIS/CCD 8409 (CCD Bias Monitor 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 in order to build up high-S/N superbiases and track the evolution 
of hot columns.  The observations completed with no problems.

    1.6 Completed WF/PC-2 8223 (The Nature of RadioOptical Alignments in 
Faint Radio Sources)
          The WF/PC-2 was used to make observations of the faint radio 
galaxy GAL-1754+6 in order to study the nature of its radio/optical 
alignment.  The study of the host galaxies of high redshift AGN is 
important if we are to attempt to investigate the population of high 
redshift galaxies, which are not selected on the basis of luminous 
starburst activity.  The observations were completed as planned, and no 
problems were reported.

    1.7 Completed STIS/CCD/MA2 8111 (CS 22892--052: A Rosetta Star for the 
Age and Early History of the Galaxy)

        The Space Telescope Imaging Spectrograph (CCD/MA2) was used to make 
observations of the "Rosetta" star CS 22892-052.  These observations should 
provide significant new information about the early history of the galaxy, 
specifically the nature of the earliest generations of stars and the types 
of nucleosynthetic processes that occurred in those stars.  The 
observations were executed as scheduled, and no anomalies were noted.

    1.8 Completed Three Sets of WF/PC-2 8090 (POMS Test Proposal: WF-II 
Parallel Archive Proposal Continuation)

        The WF/PC-2 was used in the parallel mode to make some low galactic 
latitude archive observations.  The program will be used to take parallel 
images of random areas of the sky.  The observations were executed as 
scheduled, and no anomalies were noted.

    1.9 Completed STIS/CCD/MA1/MA2 8424 (MAMA Sensitivity and Focus Monitor C8)

        The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to 
make observations of object BD+28D4211 in order to measure the sensitivity 
and to focus monitor C8.  This also is to monitor sensitivity of each MAMA 
grating mode to detect any change due to contamination or other causes, and 
to monitor the STIS focus in a spectroscopic mode.  A wavelength 
calibration was also taken.  The observations were completed as planned, 
and no anomalies were reported

    1.10 Completed STIS/MA2 8275 (Ultraviolet Snapshots of 3CR Radio Source 
Counterparts at Low Z)

        The Space Telescope Imaging Spectrograph (MA2) was used to make 
ultraviolet snapshot observations of the radio galaxy 3C231.0.  Radio 
galaxies are an important class of extragalactic objects, representing one 
of the most energetic astrophysical phenomena, while extraordinarily useful 
as probes of their environments and of the early Universe.  The 
observations were completed as scheduled, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:
       Scheduled Acquisitions:  7
Successful:  7

  Scheduled Re-acquisitions:  8
Successful:  8

    2.2 FHST Updates:
Scheduled: 17
Successful: 17

    2.3 Operations Notes:

        The SSR EDAC error counter was cleared four times per ROP SR-1.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW