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    No. 80 - Quadrature Operations

    14 Jun 2007 14:15

    Report for Period 20 May to 27 May 2007

    The quadrature operations have progressed according to plan. Some of the passes were again skipped at Cebreros during the reporting period. The use of "delayed TC files" as part of the quadrature operations has worked very well.

    The table below shows a chronology of the main activities in the reporting period:

    MET (Day) Date DOY VPER# Main Activity
    558 20/05/07 140 394 Routine Mission Operations
    559 21/05/07 141 395 Pass skipped for cooling
    560 22/05/07 142 396 Routine Mission Operations
    561 23/05/07 143 397 Pass skipped for cooling
    562 24/05/07 144 398 Routine Mission Operations
    563 25/05/07 145 399 Routine Mission Operations
    564 26/05/07 146 400 Routine Mission Operations

    At the end of the last Cebreros pass in the reporting period (DOY 145, 18:00z) Venus Express was orbiting Venus at 122.5 million km from the Earth. The one-way signal travel time was 408 seconds.

    Payload Activities

    ASPERA
    The instrument was regularly operated as part of the routine plan.

    MAG
    The instrument was regularly operated as part of the routine plan.

    PFS
    This instrument was OFF and was not operated.

    SPICAV
    The instrument was regularly operated as part of the routine plan. The SPICAV On-Board Control Procedure (OBCP) for the shutter has been tested and validated on ground.

    VeRA
    Occultation observations were performed over New Norcia on 2007-142 and 2007-144.

    VIRTIS
    The instrument was regularly operated as part of the routine plan. The VIRTIS software upload has been received at ESOC. Its validation on ground is ongoing at the moment. It is planned to implement it on-board just before the end of the quadrature phase.

    Future Milestones

    The swap to High Gain Antenna 2 will be performed on 1 June, DoY 152.

    Special operations are planned during week 23, for the Venus flyby by NASA's MESSENGER spacecraft.

    Quadrature phase operations will continue up to 16 June, DoY 167.

    PFS tests are being prepared to try to move the scanner during a wheel off-loading (WOL).


    Last Update: 22 Jun 2007

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