HUBBLE SPACE TELESCOPE

   DAILY REPORT #2576

PERIOD COVERED:  0000Z (UTC) 03/08/00 - 0000Z (UTC) 03/09/00

Daily Status Report as of 069/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 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.

    1.2 Completed WF/PC-2 8240 (Masses and Spins of Black Holes in Seyfert 
Galaxies)

        The WF/PC-2 was used to observe about 20 bright Seyfert 1 galaxies 
that are now known to have very broad {up to 100, 000 km s^-1} Fe KAlpha 
emission lines near 6.4 keV.  The observations completed nominally.

    1.3 Completed Two Sets of STIS/CCD 8410 (STIS CCD Hot Pixel Annealing C8)

        The Space Telescope Imaging Spectrograph (CCD) was used to assess 
the effectiveness of the CCD hot pixel annealing process by measuring the 
dark current behavior before and after annealing and by searching for any 
window contamination effects.  In addition CTE performance is examined by 
looking for traps in a low signal level flat.  The observations were 
completed as planned, and no anomalies were reported.

    1.4  Completed Two 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.  The observations completed with no reported problems.

    1.5 Completed WF/PC-2 8252 (Extinction Curves of Distant Galaxies)

        The WF/PC-2 was used to make observations of the distant 
galaxy/quasar B0218+357 in order to study its extinction.  The program will 
more than double the number of galaxies in which extinction curves have 
been measured and it will provide the first such measurements far outside 
the Local Group.  The observations were completed as planned, and no 
anomalies were reported.

    1.6 Completed WF/PC-2 8301 (A Snapshot Survey of X-ray Selected Central 
Cluster Galaxies)

        The WF/PC-2 was used to make snapshot survey observations of the 
x-ray, central cluster galaxy A2146.  Central cluster galaxies are the most 
massive stellar systems known and have been used as standard candles for 
many decades.  The observations were executed as scheduled, and no 
anomalies were noted.

    1.7 Completed 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.

    1.8 Completed WF/PC-2 8338 (The Evolution of the Host Galaxies of 
Powerful Radio Sources)

        The WF/PC-2 was used to make observations of the host galaxy of the 
powerful radio source known as MRC0943-24.  A combined data set of radio 
galaxies and quasars will allow powerful tests of the relationship between 
radio galaxies and quasars and the evolution of the host galaxies of 
powerful radio sources over a wide range of look-back times.  The 
observations were executed as scheduled, and no anomalies were noted.

    1.9 Completed WF/PC-2 8445 (WF/PC-2 Cycle 8 Earth Flats)

        The WF/PC-2 was used to make Cycle 8 Earth flat calibration 
observations.  This is to obtain sequences of earth streak flats to 
construct high quality flat fields for the WF/PC-2 filter set.  The 
observations were executed as scheduled, and no anomalies were noted.

    1.10 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.

    1.11 Completed STIS/CCD 8286 (Absolute Proper Motions of Nearby Dwarf 
Spheroidal Galaxies)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
observations of the absolute proper motions of the nearby dwarf spheroidal 
galaxy FOR-QSO-02.  HST is essential to achieving the high precision needed 
to conclusively compare the projected orbital motions of the individual 
galaxies.  Even with our conservative uncertainties, we are competitive 
with the best ground-based efforts with only a two year baseline.  The 
observations were completed as scheduled, and no anomalies were reported.

    1.12 Completed WF/PC-2 8436 (POMS Test Proposal: WFII Backup Parallel 
Archive Proposal II)

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

2.0 FLIGHT OPERATIONS SUMMARY:

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

  Scheduled Re-acquisitions: 9
Successful: 9

    2.2 FHST Updates:
Scheduled: 15
Successful: 15

    2.3 Operations Notes:

        Per HSTAR 7529, approximately 34 minutes of engineering data, from 
061/0717Z to 061/0751A, was lost.  When OPUS noted the missing data, the 
operations team was, at that time, unable to recover the data.

        486 tables 49, 151, 152, and 62 were dumped at 068/1433Z per ROP 
DF-01A..

        As directed by ROP AD-2-06, 486 software load QBATRECA0 was 
transferred at 068/1730Z.

        The NICMOS FPA temperature sensor for detector 2 was enabled at 
068/1953Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        The Battery #3 Capacity Check Test is scheduled to begin at 
approximately 069/1845Z.

        Continuation of normal science observations and calibrations.

/CAW