Hubble Space Telescope Daily Report #2762 12/05/00

HUBBLE SPACE TELESCOPE
 
  DAILY REPORT #2762
 
PERIOD COVERED:  0000Z (UTC) 12/04/00 – 0000Z (UTC) 12/05/00
 
Daily Status Report as of 340/0000Z
 
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
 
    1.1 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.
 
    1.2 Completed Four Sets of WF/PC-2 8811 (Cycle 9 Standard Darks)
 
        The WF/PC-2 was used to obtain dark frames every week in order to provide data for the ongoing calibration of the CCD dark current rate, and to monitor and characterize the evolution of hot pixels.  Over an extended period these data will also provide a monitor of radiation damage to the CCDs.  The proposal completed with no reported problems.
 
    1.3 Completed Four Sets of WF/PC-2/STIS/CCD 8641 (Testing the Accelerating Universe)
 
        The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD) were used to observe Type Ia supernovae which provide evidence for an accelerating universe: an extraordinary result that needs to be rigorously tested.  The observations completed with no reported problems.
 
    1.4 Completed Seven Sets of WF/PC-2 8816 (Cycle 9 UV Earthflats)
 
        The WF/PC-2 was used to obtain sequences of earth streak flats to improve the quality of pipeline flat fields for the WFPC2 UV filter set and in order to monitor flat field stability.  There were no reported problems.
 
    1.5 Completed Three Sets of WF/PC-2 8827 (Cycle 9 Supplemental Darks pt2/3)
 
        The WF/PC-2 was used to obtain three dark frames every day to provide data for monitoring and characterizing the evolution of hot pixels.  The proposal completed nominally.
 
    1.6 Completed Four Sets of STIS/CCD 8562 (Probing the Large Scale Structure: Cosmic Shear Observations)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to probe the distortion of light bundles from distant galaxies, looking at the statistical properties of the intervening inhomogeneous {dark} matter distribution.  The proposal completed nominally.
 
    1.7 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.
 
    1.8 Completed Two Sets of STIS/MA2 8843 (Cycle 9 MAMA Dark Measurements)
 
        The Space Telescope Imaging Spectrograph (MA2) was used to perform the routine monitoring of the MAMA detector dark noise.  The proposal completed nominally.
 
    1.9 Completed WF/PC-2 8812 (Cycle 9 Internal Monitor)
 
        The WF/PC-2 was used to obtain routine internal monitors for WFPC2 in order to monitor the health of the cameras.  A variety of internal exposures are obtained in order to provide a monitor of the integrity of the CCD camera electronics in both bays {gain 7 and gain 15}, a test for quantum efficiency in the CCDs, and a monitor for possible buildup of contaminants on the CCD windows.  There were no reported problems.
 
    1.10 Completed WF/PC-2 8326 (Colliding Stellar Winds and
Proto-Planetary Dynamics)
 
        The WF/PC-2 was used to investigate the interaction between a fast post-AGB collimated wind and a slowly expanding, dense AGB wind which is believed to be the dominant dynamical effect in the evolution of protoplanetary nebulae {PPNe} and the shaping of planetary nebula QX-PUP.  The proposal completed with no reported problems.
 
2.0 FLIGHT OPERATIONS SUMMARY:
 
    2.1 Guide Star Acquisitions:
        Scheduled Acquisitions: 7
              Successful:  7
 
    Scheduled Re-acquisitions:  8
                Successful:  8
 
    2.2 FHST Updates:
                  Scheduled: 15
                Successful: 15
 
    2.3 Operations Notes:
 
        The correctable SSR EDAC errors were cleared three times per ROP SR-1A.
 
        An engineering status buffer dumped was performed at 339/1405Z, using ROP DF-18A.
 
        The engineering status buffer limits were adjusted at 339/1406Z as directed by ROP DF-18A.
 
        Per an operations request and ROP DF-1A, table 157 was dumped at 339/1958Z.
 
        Using ROP DF-7A, the ephemeris uplink was performed at 340/0112Z.
 
        SSA transmitter #2 was turned on at 340/0506Z and turned off at 340/0534Z.
 
3.0 SIGNIFICANT FORTHCOMING EVENTS:
 
        Continuation of normal science observations and calibrations.