1 Status of MOST James Wells. How Are We Doing? On June 30 th, MOST will enter its 8 th year of operations! You Are Here (11.9 AUs from the Sun)

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Presentation transcript:

1 Status of MOST James Wells

How Are We Doing? On June 30 th, MOST will enter its 8 th year of operations! You Are Here (11.9 AUs from the Sun)

Several Target Campaigns, Including the Conclusion of the First Round of NASA GO Targets 3 Next round of NASA GO observations starts this Fall

4 Additional Targets From HARPS Observed four exoplanet target stars over 14 ten-hour periods, centered on expected transit times On-going campaign - still more to be observed

MOST Ground Stations Repairs were done on IFA Ground Station, and checkouts done at UTIAS and UBC Currently, all 3 stations are running well, though now and then get degraded passes at UBC IFA UTIAS UBC 5

Much Calmer 6-Months, In Terms of Radiation Induced Crashes 6 4 software crashes likely due to radiation between 12/1/2009 and 6/1/2010 (6 months) 13 crashes during the previous 6-month period SAA

Long Term Power Situation for MOST 7 Power generation drops below consumption at the beginning of 2015 (outside eclipse times)

Monitoring Eclipse Season in 2011 / Can trade-off between two variables to keep the battery charged: –Sun angle to main panel (ie. target selection) –Total transmission time Will depend on duration of the eclipse for the given day Need a new monitoring system: –Calculate power generation from Snapshot panel voltages and currents –Alarm if it below what is required for the eclipse duration of the day –Either need to reduce transmission time or switch to another target (can plan ahead to try to avoid unnecessary target switches)

Looking Ahead to Power Situation by 2013 Will need to change power setup on MOST “Engineering” anchor targets for part of an orbit –Main panel pointed more directly at sun Peak Power Trackers –Have yet to be turned on Change to CCD clocking? –Might save some power 9