HUBBLE SPACE TELESCOPE
 
  DAILY REPORT #2747
 
PERIOD COVERED:  0000Z (UTC) 11/09/00 – 0000Z (UTC) 11/10/00
 
Daily Status Report as of 315/0000Z
 
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
 
    1.1 Completed Two Sets of STIS/CCD 8837 (CCD Dark Monitor-Part 1)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks.  The proposal completed with no reported problems.
 
    1.2 Completed STIS/CCD/MA1 8566 (High Resolution UV/X-Ray Spectroscopy of SMC X-1)
 
        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to perform simultaneous observations of the X-ray pulsar SMC X-1 and its B0 companion SK160 with Chandra and ground-based optical telescopes.  The proposer will search for correlation between orbital phase and "bleaching” of important P Cygni lines by X-ray photoionization, and will model the simultaneous X-ray, ultraviolet, and optical continuum emission at different phases of the superorbital period to measure changes in mass accretion rate, disk structure, and disk size.  The proposal completed with no reported problems.
 
    1.3 Completed WF/PC-2 8892 (Test Exposures To Support WF/PC-2 Shutter RAM Patch)
 
        The WF/PC-2 was used to perform a series of test exposures supporting all mechanisms and major observing modes of WF/PC-2.  These was carried out before and will be after the installation of the RAM patch, in order to identify any differences in the behavior of the camera.  The exposures will also be used to quantify any difference in the instrumental background potentially related to the additional on-time of the shutter LEDs.  For modes that actually operate the shutter, the program will consist of identical exposures so that each exposure type will be carried out with each blade.  The exposures completed nominally.
 
    1.4 Completed Two Sets of STIS/CCD/MA1/MA2 8857 (MAMA Sensitivity and Focus Monitor C9)
 
        The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used to monitor the sensitivity of each MAMA grating mode to detect any change due to contamination or other causes.  There were no problems.
 
    1.5 Completed STIS/CCD 8838 (Bias Monitor – Part 1)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to monitor the bias in the 1×1, 1×2, 2×1, and 2×2 bin settings at gain=1, and 1×1 at gain = 4, to build up high-S/N superbiases and track the evolution of hot columns.  The proposal completed nominally.
 
    1.6 Completed STIS/CCD 8631 (Bright Quasar Close Lensing Search II)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to expand the Cycle 8 second generation HST snapshot survey of bright quasars, optimized to find lenses with component image separations < 1".  The observations completed nominally.
 
    1.7 Completed STIS/CCD 8580 (Pre-Cassini/Huygens Studies of Titan’s Surface, Troposphere and Stratosphere)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to observe Titan, Saturn’s largest satellite.  Titan has an opaque atmosphere in UV and visible wavelengths due to aerosols and methane gas.  This proposal performs a data-dense suite of observations to {a} map the
three-dimensional distribution of methane and aerosols in Titan’s troposphere and stratosphere with the possibility of detecting moving weather patterns, {b} provide a history of the distribution of haze in preparation for Cassini and Huygens observations, and {c} map Titan’s surface albedo with unprecendented spatial resolution and
signal/noise.  There were no reported problems.
 
    1.8 Completed STIS/CCD 8228 (The Black Hole Versus Bulge Mass Relationship in Spiral Galaxies)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to make observations of the galaxy NGC-2748 in order to study the black hole versus bulge mass relationship in spiral galaxies.  A wavelength calibration image was also taken.  The observations were executed as scheduled, and no anomalies were noted.
 
2.0 FLIGHT OPERATIONS SUMMARY:
 
    2.1 Guide Star Acquisitions:
      Scheduled Acquisitions:  8
                Successful:  8
 
    Scheduled Re-acquisitions:  6
                Successful:  6
 
    2.2 FHST Updates:
                  Scheduled: 15
                Successful: 15
 
    2.3 Operations Notes:
 
        Using ROP SR-1A, the SSR correctable EDAC error counter was cleared three times.
 
        The engineering status buffer limits were adjusted at 314/1936Z, per ROP DF-18A.
 
        As directed by ROP SR-3, the SSR science playback pointer was set at 314/1637Z.
 
        The STIS MCE-1 reset at 314/142600Z while the low voltage was on and while inside an SAA interval.  The STIS flight software error counter was reset at 314/1452Z, per ROP NS-12.  MAMA-1 was recovered via regular SMS commanding at 315/0124Z.
 
3.0 SIGNIFICANT FORTHCOMING EVENTS:
 
        Continuation of normal science observations and calibrations. <