shoot the moon
DESCRIPTION
Maneuver to Transfer to Stable Manifold of Earth-Moon L2 Lyapunov Orbit. Lunar Orbit. Shadowing Stable Manifold of Sun-Earth L2 Lyapunov Orbit to Leave Earth. Earth. Ballistic Lunar Capture. Shadowing Unstable Manifold of Sun-Earth L2 Lyapunov Orbit. - PowerPoint PPT PresentationTRANSCRIPT
Low Energy Transfer Applications
MWL - 1
2004 Summer Workshop on Advanced Topics in Astrodynamics
Shoot the Moon
Shadowing Unstable Manifold of
Sun-Earth L2 Lyapunov Orbit
Shadowing Stable Manifold of Sun-
Earth L2 Lyapunov Orbit to Leave Earth
Earth
Lunar Orbit
Maneuver to Transfer to Stable Manifold of Earth-Moon L2 Lyapunov Orbit
Ballistic Lunar Capture
Shoot the Moon: Low Energy Transfer & Ballistic Capture
Low Energy Transfer Applications
MWL - 2
2004 Summer Workshop on Advanced Topics in Astrodynamics
Weak Stability Boundary Approach
•Discussed in Session II.
Low Energy Transfer Applications
MWL - 3
2004 Summer Workshop on Advanced Topics in Astrodynamics
Poincaré Cut of Sun-Earth Unstable Mnfd
Earth L2 Lyapunov Orbit
Low Energy Transfer Applications
MWL - 4
2004 Summer Workshop on Advanced Topics in Astrodynamics
Poincaré Cut of Earth-Moon Stable Mnfd
Lunar L2 Lyapunov Orbit
Low Energy Transfer Applications
MWL - 5
2004 Summer Workshop on Advanced Topics in Astrodynamics
Intersect S-E & E-M Manifolds
Low Energy Transfer Applications
MWL - 6
2004 Summer Workshop on Advanced Topics in Astrodynamics
Construction of Lunar Capture Orbit
TRAJECTORIES FROM SUN-EARTH
EXTERIORREGION
TRAJECTORIES FROM SUN-EARTH
INTERIORREGION
TO EARTH-MOON INTERIOR
REGION
EARTH TO LUNAR
CAPTURE TRAJECTORY
POINCARE SECTION OF SUN-EARTH AND EARTH-MOON SYSTEMS
Low Energy Transfer Applications
MWL - 8
2004 Summer Workshop on Advanced Topics in Astrodynamics
Earth-Moon IPSIPS InterchangeInterchange
• Easy Return of S/C from L2 to– Lunar L1/L2 Orbit– Lunar Capture Orbit–Earth Return Orbit
• Potential for Human Servicing & Replacements• Staging for
Interplanetary Launch
Low Energy Transfer Applications
MWL - 10
2004 Summer Workshop on Advanced Topics in Astrodynamics
Construction of Earth Transfer Orbit
• S = [q1, q2]• Same X, Y Coord. & Energy,
Differ in Velocity, i.e. Gives V• Integrate S Backwards for
Inverse Poincare Map: P-1
• S Integrated Backwards Approaches Lyapunov Orbit and Spirals Around Sun-Earth Lyapunov Orbit’s Stable Manifold• Part of Stable Manifold
Approaches Earth
Low Energy Transfer Applications
MWL - 11
2004 Summer Workshop on Advanced Topics in Astrodynamics
Shoot the Moon
Low Energy Transfer Applications
MWL - 12
2004 Summer Workshop on Advanced Topics in Astrodynamics
Shoot the Moon
Low Energy Transfer Applications
MWL - 13
2004 Summer Workshop on Advanced Topics in Astrodynamics
Hiten-Like Ballistic Lunar Capture (2)