HUBBLE SPACE TELESCOPE

       DAILY REPORT #3050

PERIOD COVERED:  0000Z (UTC) 02/05/02 - 0000Z (UTC) 02/06/02

Daily Status Report as of 037/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed Six Sets of WF/PC-2 8937 (Cycle 9 Supplemental Darks pt2/3)

        The WF/PC-2 was used obtain three dark frames every day to provide 
data for monitoring and characterizing the evolution of hot pixels.  No 
problems were encountered.

    1.2 Completed WF/PC-2 8941 (Cycle 10 UV Earthflats)

        The WF/PC-2 was used to monitor flat field stability by obtaining 
sequences of earth streak flats to improve the quality of pipeline flat 
fields for the WFPC2 UV filter set.  The proposal had no problems.

    1.3 Completed Ten Sets of WF/PC-2 9318 (POMS Test Proposal: WFII 
Parallel Archive Proposal Continuation)

        The WF/PC-2 was used to perform the generic target version of the 
WFPC2 Archival Pure Parallel program.  The program was used to take 
parallel images of random areas of the sky, following the recommendations 
of the Parallels Working Group.  There were no reported problems.

    1.4 Completed Two Sets of STIS/CCD 8901 (Dark Monitor-Part 1)

        The Space Telescope Imaging Spectrograph (CCD) was used to monitor 
the darks.  There was no anomalous activity.

    1.5 Completed STIS/CCD 8903 (Bias Monitor - Part 1)

        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.  There were no problems.

    1.6 Completed STIS/CCD-2 8669 (Merger-Driven Evolution Of Galactic 
Nuclei: Observations Of The Toomre Sequence)

        The Space Telescope Imaging Spectrograph (CCD) was used to observe 
galaxy mergers that are believed responsible for triggering starburst and 
AGN activity in galaxies, and even perhaps transforming spiral galaxies 
into ellipticals.  The proposal completed nominally.

    1.7 Completed Nine Sets of WF/PC-2 8940 (Cycle 10 Earth Flats)

        The WF/PC-2 was used to monitor flatfield stability by obtaining 
sequences of Earth streak flats to construct high quality flat fields for 
the WF/PC-2 filter set.  These flat fields will allow mapping of the OTA 
illumination pattern and will be used in conjunction with previous internal 
and external flats to generate new pipeline superflats.  The proposal 
completed without incident.

    1.8 Completed Two Sets of WF/PC-2 9319 (POMS Test Proposal: WFII Backup 
Parallel Archive Proposal II)

        The WF/PC-2 was used to execute a POMS test proposal, designed to 
simulate future scientific plans.  The proposal completed without incident.

    1.7 Completed STIS/CCD 9088 (Next Generation Spectral Library of Stars)

        The Space Telescope Imaging Spectrograph (CCD) was used to produce 
a "Next Generation'' Spectral Library of 600 stars for use in modeling the 
integrated light of galaxies and clusters by using the low dispersion UV 
and optical gratings of STIS.  The library will be roughly equally divided 
among four metallicities, very low {Fe/H < -1.5}, low {-1.5 < Fe/H < -0.5}, 
near-solar {-0.5 < Fe/H < 0.1}, and super-solar {Fe/H > 0.1}, well-sampling 
the entire HR-diagram in each bin.  Such a library will surpass all extant 
compilations and have lasting archival value, well into the Next Generation 
Space Telescope era.  No problems occurred.

    1.8 Completed STIS/CCD/MA1 8571 (Metallicity and D/H Abundance in Low-Z 
LyAlpha Absorbers towards PG 1211+143)

        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to 
continue previous observations along the sightline toward PG 1211+143 that 
reveal numerous LyAlpha absorption lines including two very strong LyAlpha 
absorbers {cz = 15, 300 and 19, 550 km s^- 1} with associated Si III 
absorption.  These are the first definite detections of metals in a low-z 
LyAlpha forest cloud.  Simple photoionization models suggest metallicities 
in the range 1--10 sim10^17 cm^-2 in each system.  The proposers should be 
able to detect deuterium LyAlpha at 10--20 mAngstrom equivalent width, 
thereby testing models of D/H astration as a function of IGM metallicity, 
an issue of cosmological significance.  There were no problems.

    1.9 Completed STIS/MA2 9573 (NUV-MAMA Daily Dark Monitor)

        The Space Telescope Imaging Spectrograph (MA2) was used to perform 
daily monitoring of the NUV MAMA detector dark noise in order to monitor 
the effects of thermal changes on the NUV dark rate.  No problems occurred.

    1.10 Completed STIS/MA1 8572 (Identifying Normal Galaxies at 1.3 < z < 2.5)

        The Space Telescope Imaging Spectrograph (MA1) was used to perform 
studies of faint, distant galaxies.  It is now possible to observe hundreds 
of galaxies out to z=1 and in the range 3 < z < 4.5, yet the redshift range 
1 < z <3 remains largely unexplored.  No problems were noted.

    1.12 Completed Two Sets of STIS/MA1 8920 (Cycle 10 MAMA Dark Measurements)

        The Space Telescope Imaging Spectrograph (MA1) was used to perform 
the routine monitoring of the MAMA detector dark noise, and is the primary 
means of checking on health of the MAMA detectors systems through frequent 
monitoring of the background count rate.  The proposal completed with no 
reported anomalous activity.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:
       Scheduled Acquisitions:  8
    Successful:  8

  Scheduled Re-acquisitions:  9
    Successful:  9

    2.2 FHST Updates:
    Scheduled: 15
    Successful: 15

    2.3 Operations Notes:

        Using ROP SR-1A, the SSR-1 EDAC error counter was cleared twice.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW