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International Colloquium and Workshop “Ganymede Lander: scientific goals and experiments”

Golubev Yu.F., Grushevskii A.V., Koryanov V.V., Tuchin A.G. golubev@keldysh.ru A Method of Orbits Designing Using Gravity Assist Maneuvers to the Landing on the Jovian’s Moons. International Colloquium and Workshop “Ganymede Lander: scientific goals and experiments”

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International Colloquium and Workshop “Ganymede Lander: scientific goals and experiments”

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  1. Golubev Yu.F., Grushevskii A.V.,Koryanov V.V., Tuchin A.G.golubev@keldysh.ruA Method of Orbits Designing Using Gravity Assist Maneuvers to the Landing on the Jovian’s Moons International Colloquium and Workshop“Ganymede Lander: scientific goals and experiments” Moscow, Russia, 4-8 March 2013 Keldysh Institute of Applied MathematicsRussian Academy of Sciences

  2. CB-Classic Billiard Duplex Shutting CGB-Classic Gravitational Billiard

  3. 3D-gravity assist maneuver Picture from: Barrabéz E., Gómez G., Rodríguez-Canabal J. Notes for the gravitational assistedtrajectories. // Advanced topics in astrodynamics. Summer course. Barcelona, July 2004.

  4. ESA- JUICE MISSION

  5. ESA- JUICE Mission Endgame Ganymede Flyby-JOI- G&C-Flyby Sequence

  6. Roscosmos part: Ganymede Landing • Flexible JOI Data • Flexible G&C-Flyby Sequence • GOI • Ganymede Circular Orbit • Landing

  7. Roscosmos part: Ganymede Landing. Resonance beginning. Typical scenario ESTK complex of Keldysh IAM RAS Ballistic Center Navigation and Ancillary Information Facility (NAIF) - NASA Refined Flyby Model

  8. Joining to Jovian System After Interplanetary Part • Time of Jovian sphere of action2029/06/03 09:25:10 UTC • Flyby hyperbola( J2000) • Semimajor axe, km 5252.572592 • Eccentricity 1.163115 • Inclination 23.44 grad • V-Infinity, km/s 4.91 • Pericenter Time 2029/08/29 17:20:35 UTC • Pericenter altitude 12.5 RJ

  9. RADIATION HAZARD PROBLEM (M. Podzolko e.a., SINP MSU Data)

  10. Quasi-Singularity of the Radiation Hazard

  11. Typical radiation hazard analysis on the ENDGAME phase Dynamics of the radiation accumulation

  12. Typical radiation hazard analysis on the ENDGAME phase Dynamics of the radiation accumulation- zoom scale

  13. Dynamics of the radiation accumulation- on one orbit. Quasi-singularity

  14. Tisserand-Poincare graph(by N.Strange, J.Sims, Kevin W.Kloster, James M.Longuskie.a.)

  15. The V∞ Globe (from Russel, Strange et al. (2007)) Represents all possible V∞ vector tips after a fly-by

  16. JUICE Tisserand-Poincare graph type

  17. Pareto front of Tisserand Graphfor the Roscosmos Laplace mission

  18. Pareto front trees of Tisserand graphfor Russian Laplace mission

  19. Research basement • Orbit correction algorithm preceding spacecraft’s Jovian moons gravity assists • Gravity assists refined model • ESTK KIAM RAS Ballistic centre complex • Navigation and Ancillary Information Facility (NAIF) -NASA ephemeris— will be refined during JUICE byESA

  20. Fly-by sequence selection strategy • Lambert problem solution; • The phase-beams method; • Delta V minimizations; • Gravity-assist parameters permanent corrections; • Simulations results are presented.

  21. Gravity-assist sequence. Effective Type T1

  22. Low-radiation sequence type T2

  23. Type: Hyper-low-radiation,Expensive Delta V • T3

  24. Using PHASE BEAM method of Gravity Assists Sequences Determination

  25. Virtual Trajectories Splitting After Swing-by

  26. Applications for Another Kinds of Flybys

  27. Callisto & Ganymede • Tour design problem lends itself well to optimization schemes Callisto & Ganymede assists us to minimize fuel requirements

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