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Mars Express Analysis of Orbit cases (OCM 2010)

Mars Express Analysis of Orbit cases (OCM 2010). September 2009. Study cases, starting from current 25/7 orbit. In all cases Orbit Change 1 st Jan. 1010 Ground track pattern is representative Exact longitude is not representative Ground track propagation was always to the east.

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Mars Express Analysis of Orbit cases (OCM 2010)

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  1. Mars Express Analysis of Orbit cases (OCM 2010) September 2009

  2. Study cases, starting from current 25/7 orbit • In all cases Orbit Change 1st Jan. 1010 • Ground track pattern is representative • Exact longitude is not representative • Ground track propagation was always to the east. • 7/2 has the cheaper ‘west’ version

  3. 25/7 131/37 88/25 7/2E 7/2W 45/13 All cases overview

  4. 25/7 131/37 88/25 7/2E 7/2W 45/13 Eclipses 2010-2018

  5. Occultations

  6. 25/7 P+15 P-15 2013 2015

  7. 131/37

  8. 88/25

  9. 7/2W

  10. 7/2E

  11. 45/13

  12. Extension 2010-2012 and 2013-2014

  13. Histograms • 2010-2012, 2013-2014 • At pericenter • P+30 • Latitude -30 to +30 (EXM, MSL)

  14. Pericenter 2010-2012 • All cases have SEA<30 at pericenter • Higher SEA after P only

  15. Pericenter 2013-2014 • Most case SEA< 15 deg • Only 7/2 and 45/13 with some pericenters SEA>15

  16. Pericenter +30’ • 2013-2014 • 2010-2012

  17. MSL,EXM latitudes -30 to +30 degat P+30

  18. 7/2E, 7690-11503, 2010-2012 SEA>15 deg, altitude <450 km, FOV 12 deg.

  19. 88/25 7690-11503, 2010-2012 SEA>15 deg, altitude <450 km, FOV 12 deg.

  20. 25/7 7690-11503, 2010-2012 SEA>15 deg, altitude <450 km, FOV 12 deg.

  21. Timing of OCM Phobos Eclipse >30’ 7527-7883 mtp70 mtp72 mtp74 mtp76 20 Sept. 19 Oct. 16 Nov. 14 Dec. 11 Jan. 8 Feb. 8 Mar. 5 Apr. Orbit MTP planning lead time

  22. POWER situation

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