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THEMIS Orbit Updates S.Frey

THEMIS Orbit Updates S.Frey. Overview. Overview THEMIS Orbits 2008/2009 THEMIS Extension Inner Probes. Orbit Swing Maneuvers. P1PB Oct. 17, 2008 APER 193 to -30 deg Incl. 15 to -18 deg drp -3300 km Fuel: 0.2+12.8+0.2=13.4kg. P2PC Oct. 22, 2008 APER 156 to -20 deg

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THEMIS Orbit Updates S.Frey

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  1. THEMIS Orbit Updates • S.Frey

  2. Overview • Overview • THEMIS Orbits 2008/2009 • THEMIS Extension Inner Probes

  3. Orbit Swing Maneuvers P1PB Oct. 17, 2008 APER 193 to -30 deg Incl. 15 to -18 deg drp -3300 km Fuel: 0.2+12.8+0.2=13.4kg P2PC Oct. 22, 2008 APER 156 to -20 deg Incl. 1 to -11 deg drp =30 km Fuel: 0.3+9.8+0.3=10.6kg

  4. 2008-12-23 2008-11-30 2009-05-05 2009-06-04 THEMIS 2008/2009 Dawn 2008 Tail 2008/2009 WD+60d Apr -08 WD+24d Mar-03 WD Feb-07 WD-24d Jan-14 WD-60d Dec-09 Dusk 2009

  5. Tail2/Day2 Day 2 P5 apogee up >30days WD-88d 2009-May-15 WD-60d 2009-Jun-11 P1 dra=-4000 km dV~ 5m/s P2 dra=-2000 km dV~ 4m/s WD-24d 2009-Jul-17 P1 dra=-4000 km dV~ 5m/s

  6. Fuel, dV after D2 Total dV and Fuel Consumption after D2 Available dV and Fuel Consumption

  7. 8/7*24h P4, P5 P3 P3,P5 P4 P4 P4 P4 T3 D3 T4 D4 T5 T3 D3 T4 D4 T5 Inner Probes Extension • 2010 2010 • 2011 • 2012 Table7a from THEMIS SR-8_02_13m.doc

  8. Ground Conjunctions 2010-2012 • Apogee footprints move eastward 2012 2011 2010

  9. Back-UP slides

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