HUBBLE SPACE TELESCOPE

       DAILY REPORT #3005

PERIOD COVERED:  0000Z (UTC) 11/26/01 - 0000Z (UTC) 11/27/01

Daily Status Report as of 331/0000Z

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 Three Sets of 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.  As 
described in 2.1 and HSTAR 8404, the acquisition for the third iteration of 
this proposal defaulted to fine lock backup one one FGS only, possibly 
affecting ten observations.  Otherwise, the observations completed nominally.

    1.3 Completed Three Sets of WF/PC-2 8936 (Cycle 10 Supplemental Darks 
Pt1/3)

        The WF/PC-2 was used to perform a dark calibration program that 
obtains three dark frames every day to provide data for monitoring and 
characterizing the evolution of hot pixels.  The proposal completed with no 
reported problems.

    1.4 Completed WF/PC-2 9124 (Mid-UV SNAPSHOT Survey of Nearby 
Irregulars: Galaxy Structure and Evolution Benchmark)

        The WF/PC-2 was used to investigate the relation between star 
formation and the global physical characteristics of galaxies to interpret 
the morphologies of distant galaxies in terms of their evolutionary 
status.  Distant galaxies are primarily observed in their rest frame 
mid-ultraviolet.  They resemble nearby late-type galaxies, but are they 
really physically similar classes of objects?  It is proposed to address 
this question through a SNAPSHOT survey in the 2 mid-UV filter F300W of 98 
nearby late-type, irregular and peculiar galaxies.  No problems were reported.

    1.5 Completed Three Sets of STIS/CCD 9285 (POMS Test Proposal: STIS 
Non-scripted Parallel Proposal Continuation III)

        The Space Telescope Imaging Spectrograph (CCD) was used to make low 
galactic latitude, non-scripted parallel observations as part of a POMS 
test proposal.  The observations were completed as planned, and no 
anomalies were reported.

    1.6 Completed Two Sets of WF/PC-2 8597 (The Fueling of Active Nuclei: 
Why are Active Galaxies Active?)

        The WF/PC-2 was used to investigate the accretion onto massive 
black holes that are believed to be the energy source for AGN.  However, 
evidence for black holes in quiescent galaxies has also been reported.  Why 
are these galaxies inactive?  One possibility is that active galaxies are 
better at providing fuel to the nuclear region than quiescent 
galaxies.  Other possible fueling mechanisms such as ``bars-within-bars'' 
or nuclear spirals cannot be investigated from the ground because they are 
relatively small features in the ISM.  The observations were completed as 
planned.

    1.7 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.

    1.8 Completed Two Sets of 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.

    1.9 Completed Two Sets of WF/PC-2 8699 (The Origin of Short-Period Comets)

        The WF/PC-2 was used to detect and characterize cometary nuclei in 
order to determine the basic physical properties of a large fraction of the 
population of short-period comets.  By acquiring statistically significant 
data, we can study the origin of this family of comets and test the 
hypothesis that they are collisional fragments from the Kuiper Belt 
Objects.  The observations completed with no reported problems.

    1.10 Completed Four Sets of STIS/MA1/MA2 8920 (Cycle 10 MAMA Dark 
Measurements)

        The Space Telescope Imaging Spectrograph (MA1 and 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.

    1.11 Completed Two Sets of WF/PC-2 8939 (Cycle 10 Internal Monitor)

        The WF/PC-2 was used to calibrate the internal monitor, to be run 
weekly to monitor the health of the cameras.  No problems were encountered.

    1.12 Completed Three Sets of STIS/CCD 7912 (STIS Parallel Archive 
Proposal - Nearby Galaxies - Imaging and Spectroscopy)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
parallel observations of nearby galaxies.  This survey will be useful to 
study the star formation histories, chemical evolution, and distances to 
these galaxies.  These data will be placed immediately into the Hubble Data 
Archive.  The observations were completed as scheduled, and no problems 
were reported

    1.13 Completed WF/PC-2 9041 (Direct Imaging Of The Progenitors Of 
Massive, Core-Collapse Supernovae)

        The WF/PC-2 was used to continue recent surveys of star-forming 
galaxies in the nearby Universe that are discovering significant numbers of 
supernovae which have massive star.  There were no reported problems.

    1.14 Completed Two Sets of WF/PC-2 8942 (Cycle 10 Intflat Sweeps and 
Linearity Test)

        The WF/PC-2 was used to monitor the pixel-to-pixel flatfield 
response and provide a linearity check.  These intflat sequences are done 
once during the year and the images will provide a backup database in the 
event of complete failure of the visflat lamp as well as allow monitoring 
of the gain ratios.  There were no reported problems.

    1.15 Completed 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.

    1.16 Completed Two Sets of WF/PC-2/STIS/CCD/MA1/MA2 9127 (The UV 
interstellar Extinction in Nearby Galaxies: M33)

        The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD, MA1 
and MA2) were used to investigate further the dust properties that vary in 
different environments and from galaxy to galaxy.  The proposers had 
previously used HST to determine the UV extinction curve in M31.  That 
result, together with other studies of the Magellanic Clouds and Milky Way, 
suggested that the dust particles vary and the proposers plan to enlarge 
the sample by studying the UV extinction properties of dust in M33, 
sampling different galactocentric distances and levels of star formation 
activity.  There were no reported problems.

    1.17 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section 
Only): Cycle 4)

         This proposal was executed as scheduled, and no anomalies were noted.

    1.18 Completed Two Sets of STIS/CCD 8611 (Observations of Nearby Type 
Ia Supernovae)

        The Space Telescope Imaging Spectrograph (CCD) was used to obtain 
UV spectra of five nearby {0.02 < z < 0.08} SNe Ia in the Hubble Flow.  The 
spectra will be taken at weekly intervals over a range in time starting 
slightly before maximum light and extending to +30 days.  These 
observations will accomplish the following three goals: {1} calibration of 
the rest frame UV light curves of SNe Ia and an assessment of their 
potential use as distance indicators through UV light curve shape analyses. 
{2} improvement in our understanding of the physics of SNe Ia, 
metallicity/evolutionary effects and correlations between peak brightness 
and UV spectral features. {3} calibration of the SNe Ia previously observed 
by HST at high-redshift.  This data is crucial for proper cross-filter 
k-corrections and calibration of the supernova photometry.  The 
observations completed with no reported anomalous activity.

    1.19 Completed Two Sets of WF/PC-2 9244 (POMS Test Proposal: WFII 
Parallel Archive Proposal Continuation)

        The WF/PC-2 was used to perform a generic target version of the 
Archival Pure Parallel program.  The program will be used to take parallel 
images of random areas of the sky, following the recommendations of the 
Parallels Working Group.  The observations completed with no anomalous 
activity.

    1.20 Completed FOC/96 7923 (FOC F/96 Turn-on)

        The Faint Object Camera (f/96) was used to take an internal flat 
and a dark to ensure that the 30-day limit for the FOC is not 
exceeded.  The observations were executed as scheduled, and no anomalies 
were noted.

    1.21 Completed STIS/CCD 9070 (A Census of Nuclear Star Clusters in 
Late-Type Spiral Galaxies: II. Spectroscopy and Stellar Populations)

        The Space Telescope Imaging Spectrograph (CCD) was used to 
investigate spiral galaxies that have a prominent star cluster in their 
dynamical center.  Statistics for cluster frequency, size, and luminosity 
remain incomplete.  The proposal completed as planned.

2.0 FLIGHT OPERATIONS SUMMARY:

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

        Per HSTAR 8404, the acquisition at 330/224911Z defaulted to fine 
lock backup on FGS-1 only when the scan step limit was exceeded on 
FGS-2.  The proposal detailed in 1.2 may have been affected.
  Scheduled Re-acquisitions:  7
Successful:  7

    2.2 FHST Updates:
Scheduled: 21
Successful: 21

    2.3 Operations Notes:

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

        The engineering status buffer limits were adjusted at 330/1039Z per 
ROP DF-18A.

        The COSTAR Operate Converter was temporarily enabled at 330/2020Z 
per an operations request.

        The ephemeris table was loaded at 331/0020Z as directed by ROP DF-07A.

        A TTR was generated for a required re-transmit at 331/025950Z 
during a NSSC-1 load.  SI C&DH errors were reset at 331/0311Z, using ROP NS-05.

        Per ROP NS-03, the NSSC-1 status buffer was dumped at 331/0344Z.

        The STIS MCE-2 reset at 331/061427Z while outside any SAA interval 
and while the low voltage was on.  The STIS flight software error counter 
was reset at 331/0630Z per ROP NS-12.  MAMA-2 will be recovered at 
331/1127Z, the next time high voltage will be commanded via the SMS.

        There was a STIS EMC re-try at 331/084830Z.  The STIS flight 
software error counter was reset at 331/0948Z, using ROP NS-12.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/CAW