International Colloquium and Workshop “Ganymede Lander: scientific goals and experiments”
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Transcript of International Colloquium and Workshop “Ganymede Lander: scientific goals and experiments”
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Golubev Yu.F., Grushevskii A.V.,Koryanov V.V., Tuchin A.G.
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”
Moscow, Russia, 4-8 March 2013
Keldysh Institute of Applied MathematicsRussian Academy of Sciences
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CB-Classic Billiard
Duplex ShuttingCGB-Classic Gravitational Billiard
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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.
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ESA- JUICE MISSION
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ESA- JUICE Mission Endgame
Ganymede Flyby-JOI-G&C-Flyby Sequence
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Roscosmos part: Ganymede Landing
Flexible JOI Data Flexible G&C-Flyby Sequence GOI Ganymede Circular Orbit Landing
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Roscosmos part: Ganymede Landing. Resonance beginning. Typical scenario
ESTK complex of Keldysh IAM RAS Ballistic CenterNavigation and Ancillary Information Facility (NAIF) - NASARefined Flyby Model
Moon Orbital period of SC after the satellite flyby rated to satellite’s orbital period
Number of rounds after a flyby
Ganymede 6 1Ganymede 5 2Ganymede 4 1Ganymede 3 1Ganymede 2.5 2Ganymede 2 1
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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
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RADIATION HAZARD PROBLEM (M. Podzolko e.a., SINP MSU Data)
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Quasi-Singularity of the Radiation Hazard
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Typical radiation hazard analysis on the ENDGAME phase
Dynamics of the radiation accumulation
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Typical radiation hazard analysis on the ENDGAME phase
Dynamics of the radiation accumulation- zoom scale
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Dynamics of the radiation accumulation- on one orbit. Quasi-singularity
Period after flyby of GANYMEDE 42.9 daysDistance in pericenter rated to Jupiter’s radius 11.5Distance in apocenter rated to Jupiter’s radius 98.0
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Tisserand-Poincare graph(by N.Strange, J.Sims, Kevin W.Kloster, James M.Longuski e.a.)
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The V∞ Globe (from Russel, Strange et al. (2007))
Representsall possibleV∞vector tips after a fly-by
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JUICE Tisserand-Poincare graph type
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Pareto front of Tisserand Graph for the Roscosmos Laplace mission
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Pareto front trees of Tisserand graphfor Russian Laplace mission
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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 by ESA
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Fly-by sequence selection strategy
Lambert problem solution; The phase-beams method; Delta V minimizations; Gravity-assist parameters permanent
corrections; Simulations results are presented.
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Gravity-assist sequence. Effective Type T1
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Low-radiation sequence type T2
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Type: Hyper-low-radiation,Expensive Delta V
T3
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Using PHASE BEAM method of Gravity Assists Sequences Determination
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Virtual Trajectories Splitting After Swing-by
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Applications for Another Kinds of Flybys
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Callisto & Ganymede
Tour design problem lends itself well to optimization schemes
Callisto & Ganymede assists us to minimize fuel requirements
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