HUBBLE SPACE TELESCOPE

       DAILY REPORT #3040

PERIOD COVERED:  0000Z (UTC) 01/22/02 - 0000Z (UTC) 01/23/02

Daily Status Report as of 023/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed Two Sets of WF/PC-2 8932 (Decontaminations and Associated 
Observations Pt. 1/3)

        The WF/PC-2 was used for the monthly WFPC2 decons.  Also included 
are instrument monitors tied to decons: photometric stability check, focus 
monitor, pre- and post-decon internals {bias, intflats, kspots, &and 
darks}, UV throughput check, VISFLAT sweep, and internal UV flat check.  No 
problems were reported.

    1.2 Completed STIS/CCD/MA1/MA2 9279 (Resolving the Warm Absorber in NGC 
5548)

        The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was 
used to map the ionization and velocity structure of the X-ray and UV 
absorbers in NGC 5548.  NGC 5548 is an important target because 1} it shows 
multiple kinematic components in the UV characterized by a range in 
ionization parameter and effective column, 2} it shows evidence for 
multiple kinematic and ionization components in previous Chandra X-ray 
spectra, and 3} it has a low Galactic column, which permits coverage of 
spectral lines out to 80 Angstrom with the LETGS.  These data yield the 
ionization parameter and column density of density of the absorption-line 
regions as a function of radial velocity, and constrain the elemental 
abundances and shape of the observed EUV continuum.  All observations 
completed and no anomalies were reported.

    1.3 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.

    1.4 Completed Two Sets of STIS/MA2 8920 (Cycle 10 MAMA Dark Measurements)

        The Space Telescope Imaging Spectrograph (MA2) 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 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.

    1.6 Completed 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.

    1.7 Completed Three 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.

    1.8 Completed Six Sets of 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.

    1.9 Completed Three 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 FGS/1 9407 (Astrometry of a Star Hosting an Extrasolar 
Planet: The Mass of Upsilon Andromedae)

        Fine Guidance Sensor #1 was used to determine the astrometric 
elements {perturbation orbit semimajor axis and inclination} produced by 
the outermost extra-solar planet orbiting the F8V star Upsilon 
Andromedae.  These observations will permit us to determine the actual mass 
of the planet by providing the presently unknown sin i factor intrinsic to 
the radial velocity method which discovered this object.  An inclination, i 
= 30degrees, within the range of one very low precision determination using 
reanalyzed HIPPARCOS intermediate data products, would produce the observed 
radial velocity amplitude, K = 66 ms with a companion mass of ~8 M_Jupiter. 
Such a mass would induce in Upsilon Andromedae a perturbation semi-major 
axis, Alpha = 0arcs0012. The proposed observations will yield a planetary 
mass, rather than, as previous investigations have done, only suggest a 
planetary mass companion.  The proposal completed nominally.

    1.11 Completed Three Sets of STIS/CCD 9066 (Closing in on the Hydrogen 
Reionization Edge of the Universe)

        The Space Telescope Imaging Spectrograph (CCD) was used in parallel 
constrain the Hydrogen reionization edge in emission that marks the 
transition from a neutral to a fully ionized IGM at a predicted 
redshifts.  The proposal completed uneventfully.

    1.12 Completed WF/PC-2 9141 (Fine Scale Temperature Fluctuations in 
Gaseous Nebulae)

        The WF/PC-2 was used to image the Orion and Eskimo nebulae in 
filter sets that will allow determination of O III 5007 and 4363 Angstrom 
flux ratios, which is a well calibrated electron temperature 
determinant.  All observations were completed without incident.

    1.13 Completed FGS/2 8946 (Pre-SM3B Observations for Verification of 
Operational FGS Calibrations)

        Fine Guidance Sensor #2 was used to monitor the characteristics of 
the three Fine Guidance Sensors across the boundary of the servicing 
mission SM3B.  This proposal establishes the pre-SM3B baseline 
measurements.  No problems were encountered.

    1.14 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.

    1.15 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.

    1.16 Completed WF/PC-2 9058 (Trigonometric Parallax of the Globular 
Cluster 47 Tucanae)

        The WF/PC-2 was used measure the trigonometric parallax of 47 Tuc, 
which is about 1/4 milliarcsec, to an accuracy of 10%.  By repeating a 
field that was observed in 1995, we will measure the secular motion of the 
cluster stars with respect to the SMC background with sufficient accuracy 
that the parallax can be measured directly from the displacements within 
Cycle 10.  Constraints of orientation, and the shape of the WFPC2 
footprint, require that we take images at 3-month intervals, rotating 90 
degrees each time.  The proposal completed with no reported problems.

    1.17 Completed Two Sets of 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.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:
             Scheduled Acquisitions:  6
    Successful:  6

        Scheduled Re-acquisitions:  8
    Successful:  8

    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.

        The SSR-3 EDAC error counter was cleared once per ROP SR-9A.

        An operations request was used to direct limit management during a 
period of WF/PC-2 decontamination.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW