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Missions Working Group report to ILRS General Assembly

This report provides a general mission description, detailed description of the Laser Retroreflector Array (LRA), and comments from the Mission Working Group (MWG) regarding support requests for various missions. It also includes recommendations for strengthening the process and collaboration with other Working Groups.

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Missions Working Group report to ILRS General Assembly

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  1. Missions Working Groupreport to ILRS General Assembly GOCE, ESA Friday October 17th 2008 Poznan, Poland Graham Appleby and Peter Shelus

  2. Mission support requests • Mission sponsors fill in the ILRS web-based request forms • A general mission description, need for SLR, etc.; • detailed description of the LRA • MWG then comments via email • Solicits further comments from the other WGs (Analysis, Networks, Formats); • this stage to be strengthened • Final recommendation to GB

  3. Missions ‘processed’ 2007/08 • JASON-2 – altimetry, time-transfer; 1500km • PROBA-2 – solar obs, GPS cal/val; 720km • GOCE – gravity field; 289km • QZS-1 – GNSS; GEO, i=45º • SOHLA-1 – GPS cal/val, tech demo; 670km • LRO – Lunar exploration, 50km Lunar orbit • COMPASS-M1 – GNSS • OICETS, second campaign, optical nav and coms

  4. OICETS • MWG tasked to request ILRS support for new tracking campaign Oct 2008 to Mar 2009 – made positive recommendation; • There are some time-slots when mission does not want laser tracking: • Laser communication experiment; • Details being worked out before full approval

  5. MWG meetings • Grasse, 2007; • Poznan, 2008. • At Poznan meeting, agreed: • Missions seeking support must make clear from the outset whether there will be restrictions to tracking; • To recommend to DFPWG that all stations be required to invoke a go/no-go flag-reading capability • To work with AWG to recommend stations track the ETALONS more frequently

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