HUBBLE SPACE TELESCOPE

       DAILY REPORT #3045

PERIOD COVERED:  0000Z (UTC) 01/29/02 - 0000Z (UTC) 01/30/02

Daily Status Report as of 030/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed STIS/CCD/MA2 9161 (The Ultraviolet Properties of Obscured 
QSOs)

        The Space Telescope Imaging Spectrograph (CCD and MA2) was used to 
observe a subset of The Two Micron All-Sky Survey {2MASS} -discovered QSOs 
to: 1} determine if UV absorption- line features are present as seen in 
several other highly polarized AGN populations; 2} test relationships 
between X-ray and UV/optical attenuation, AGN spectral type, optical 
polarization, and detected UV absorption-line features; and 3} characterize 
the spectral energy distributions and UV properties of obscured 
QSOs.  There were no problems.

    1.2 Completed Three 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.

    1.3 Completed Four 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 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.

    1.5 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.

    1.6 Completed WF/PC-2 9118 (Tracing the Cosmic Expansion to z>1 with 
Type Ia Supernovae)

        The WF/PC-2 was used to observe type Ia supernovae in order to 
provide evidence for an accelerating universe.  The case for cosmic 
acceleration rests almost entirely on the observation that the observed SN 
Ia at z~0.5 are 0.25 magnitudes fainter than expected for a 
non-accelerating Universe.  It is proposed to follow five SN Ia in the 
range 0.95<z<1.2 using the 850LP filter.  When combined with a ground-based 
J-band follow-up campaign, the proposers can expect to measure the mean 
luminosity distance of the sample at z~ 1.05 to better than 5.  At these 
redshifts, the effect of Omega_Lambda has all but vanished and the Universe 
was decelerating due to its known matter content.  Because any simple 
systematic error will deviate substantially from the non-monotonic effect 
of a Omega_Lambda > 0 cosmology, this experiment is a powerful and 
straightforward way to assess the reliability of the SN Ia 
measurements.  In addition, if SN Ia are reliable standard candles, the 
proposed observations will significantly increase the precision with which 
Omega_Lambda and Omega_M are measured.  There was no reported anomalous 
activity.

    1.7 Completed STIS/CCD 9317 (Pure Parallel Imaging Program: Cycle 10)

        The Space Telescope Imaging Spectrograph (CCD) was used to perform 
the default archival pure parallel program for STIS during cycle 10.  There 
were no reported problems.

    1.8 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.

    1.9 Completed STIS/CCD 9239 (Absolute Proper Motions of Nearby Dwarf 
Spheroidal Galaxies-Cycle 10)

        The Space Telescope Imaging Spectrograph (CCD) was used to measure 
precise absolute proper motions for four dwarf spheroidal satellites of the 
Milky Way using spectroscopically-confirmed background QSOs to define a 
zero- velocity reference frame.  The proposal completed with no reported 
problems.

    1.10 Completed Two Sets of STIS/CCD 9077 (Survey of the LMC Planetary 
Nebulae)

        The Space Telescope Imaging Spectrograph (CCD) was used to perform 
a snapshot survey of all known LMC planetary nebulae {PNe} in order to 
study the co-evolution of the nebulae and their central stars, and to probe 
the chemical enrichment history of the LMC.  There were no reported problems.

    1.11 Completed WF/PC-2 8059 (POMS Test Proposal: Targeted Parallel 
Archive Proposal)

        The WF/PC-2 was used to observe the parallel opportunities 
available in the neighborhood of bright galaxies are treated in a slightly 
different way from the normal pure parallels.  Local Group galaxies offer 
the opportunity for a closer look at young stellar 
populations.  Narrow-band images in F656N can be used both to identify 
young stars via their emission lines, and to map the gas distribution in 
star-forming regions.  The observations completed nominally.

    1.12 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.

    1.13 Completed STIS/CCD 9187 (A Lyman Limit Snapshot Survey: The Search 
for Candidate D/H Absorbers)

        The Space Telescope Imaging Spectrograph (CCD) was used to measure 
D/H in gas clouds seen against background QSOs.  This provides a unique and 
fundamental cosmological probe of the baryonic density parameter.  To date, 
most of the QSO absorption line D/H constraints have been derived at high 
redshift.  In this proposal the proposers investigate a lower redshift 
range, because there are two potentially crucial advantages to be gained by 
carrying out D/H measurements at intermediate redshift.  First, the 
background of HI forest lines is lower and contamination of the DI feature 
is significantly reduced.  Second, a far larger sample of very bright QSOs 
exists.  There were no reported problems.

    1.14 Completed STIS/CCD/MA1 9137 (Quasar Absorbers and Large Scale 
Structure)

        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to 
perform spectroscopy of 15 bright quasars in a 22 square degree region that 
has well-sampled galaxy redshifts.  No problems were encountered.

    1.15 Completed 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.

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: 13
    Successful: 13

    2.3 Operations Notes:

        The SSR-1 EDAC error counter was cleared twice per ROP SR-1A.

        Using ROP NS-3, the NSSC-1 status buffer was dumped at 029/2000Z.

        A TTR was generated when there was a required re-transmit at 
030/0746Z during a 486 uplink.  The engineering status buffer limit was 
updated (SESBSLD=1) at 030/0752Z in accordance with ROP DF-18A.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW