HUBBLE SPACE TELESCOPE

       DAILY REPORT #3060

PERIOD COVERED:  0000Z (UTC) 02/19/02 - 0000Z (UTC) 02/20/02

Daily Status Report as of 051/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 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.

    1.2 Completed STIS/CCD 9131 (Imaging the Host Galaxies of High Redshift 
Type Ia Supernovae)

        The Space Telescope Imaging Spectrograph (CCD) was used to complete 
the snapshot survey of distant galaxies of known redshift which hosted 
supernovae {SNe} of Type Ia found via the Supernova Cosmology Project 
{SCP}.  No problems were seen.

    1.3 Completed Three Sets of WF/PC-2 8933 (Decontaminations and 
Associated Observations Pt. 2/3)

        The WF/PC-2 was used for the monthly decons.  Also included were 
instrument monitors tied to decons: photometric stability check, focus 
monitor, pre- and post-decon internals {bias, intflats, kspots, & darks}, 
UV throughput check, VISFLAT sweep, and internal UV flat check.  There were 
no reported problems.

    1.4 Completed Two Sets of 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.

    1.5 Completed WF/PC-2 9060 (Photometry of a Statistically Significant 
Sample of Kuiper Belt Objects)

        The WF/PC-2 was used to propel the physical study of KBOs forward 
by performing accurate photometry at V, R, and I on a sample of up to 150 
KBOs.  The sample is made up of objects that will be observed at thermal 
infrared wavelengths by SIRTF and will be used with those data to derive 
the first accurate diameters and albedos for a large sample of KBOs.  The 
observations completed nominally.

    1.6 Completed Two Sets of STIS/CCD 8907 (Spectroscopic Flats C10)

        The Space Telescope Imaging Spectrograph (CCD) was used to obtain 
CCD flats in the spectrographic mode.  There were no reported problems.

    1.7 Completed Four 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.

    1.8 Completed Two Sets of 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.

    1.9 Completed Eight 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.

    1.10 Completed STIS/CCD 9280 (X-Ray Imaging of GPS and CSS Quasars)

        The Space Telescope Imaging Spectrograph (CCD) was used to conduct 
a survey of GPS and CSS radio-loud quasars, by studying their arcsecond 
structure in the X-rays, by searching for X-ray jets, and by searching for 
signatures of intermittent AGN activity.  The proposal completed nominally.

    1.11 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.

    1.12 Completed STIS/CCD 9128 (A Snapshot Survey of Absorption Lines 
from High Velocity Clouds in the Milky Way)

        The Space Telescope Imaging Spectrograph (CCD) was used to search 
for Mg II and Mg I absorption from Galactic High Velocity Clouds {HVCs} 
along the sightlines of 51 of the brightest QSOs, BL Lacs and Seyfert 2 
galaxies in the sky.  The observations completed with no reported problems.

    1.13 Completed Two Sets of STIS/CCD/MA1 8590 (UV Imaging and 
Spectroscopy of Luminous Blue Compact Galaxies from z=0 to z=1)

        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to 
observe two well-defined samples of low-mass starburst galaxies, one in the 
local universe {z<0.1} and another at intermediate redshifts {0.2 < z < 
0.7}.  Both samples show optical sizes, morphologies, emission line widths, 
and luminosities comparable to those of LBGs at z=3, and are therefore 
probably the best local analogs and testbeds for further study of 
LBGs.  Our main goals are to: {1} explore the morphologies, surface 
brightness distributions, and half-light radii of nearby starforming 
galaxies in the FUV, near Ly-alpha; {2} search for systematic differences 
among UV, optical, and near-IR morphologies and structural parameters; {3} 
investigate the intrinsic emission and absorption spectra near Ly-alpha of 
starbursting dwarf galaxies, with special attention to Ly- alpha profiles 
and interstellar and stellar photospheric absorption from Si II, O I, C II, 
Si IV, and C IV; {4} measure their FUV-optical colors and dust extinction 
properties; and {5} test the hypothesis that low-mass starbursts are the 
local counterparts of LBGs.  The observation completed normally.

    1.14 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.

    1.15 Completed STIS/CCD 8905 (Read Noise Monitor)

        The Space Telescope Imaging Spectrograph (CCD) was used to measure 
the read noise of all the amplifiers {A, B, C, D} on the STIS CCD using 
pairs of bias frames.  Full frame and binned observations are made in both 
Gain 1 and Gain 4, with binning factors of 1x1, 1x2, 2x1 and 2x2.  All 
exposures are internals.  The proposal completed with no reported anomalies.

    1.16 Completed STIS/CCD 9068 (Accurate Determination of the BH Mass in 
Early-Type Disk Galaxies)

        The Space Telescope Imaging Spectrograph (CCD) was used to map the 
ionized gas velocity field of three early-type disk galaxies, for which we 
will be able to derive high precision BH mass measurements.  The sample 
galaxies have been selected by means of ground-based high resolution 
spectroscopy among 37 observed objects, since it is recognized in their 
central regions the clear presence of a circumnuclear Keplerian disk of 
ionized disk suitable for dynamical modelling.  The proposal completed with 
no reported problems.

    1.17 Completed Four Sets of 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.

    1.18 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.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:
       Scheduled Acquisitions: 10
    Successful: 10

  Scheduled Re-acquisitions:  6
    Successful:  6

    2.2 FHST Updates:
    Scheduled: 23
    Successful: 23

    2.3 Operations Notes:

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

        An operations note was executed in order to adjust the battery 
re-charge ratio limits for the high Sun time currently in progress.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW