1. The Interplanetary Transport Network: Space Transportation Architecture for the 21st Century 5 May 2004 Shane Ross Everhart Lecture Series Control & Dynamical Systems Animation Source: Cici Koenig www.cds.caltech.edu/~shane Collaborators: M.W. Lo (JPL/NASA), J.E. Marsden & W.S. Koon (CDS)

4. Source: John Frassanito & Associates

7. Mars Moon Asteroids

8. Source: Greg Martin Terrestrial Planet Finder (TPF)

9. Jupiter’s Moons

10. IoEuropa GanymedeCallisto Earth Moon

11. Icy Moons

14. You are here

18. Fuel 90% Spacecraft 10%

19. Now you’re here

22. Destinations, stay time => on-board fuel mass % Rockets => limited spacecraft mass

23.  Apollo (Lunar Lander): 61%

25.  Pioneer / Voyager (Planetary Flybys): 46%

28.  Galileo (Jupiter Orbiter): 42%

31.  NEAR (Asteroid Orbiter / Lander): 40%

32.  Genesis (Solar Wind Sample Return): 4%

33.  Your car (San Francisco): 5%

34.  Your car (Bakersfield, maybe?): 5%

35. Less fuel => more payload more science

36. Less fuel => more payload more science more bang per buck

37. You are here

38. Pick your destinations

39. Flybys

40. Pioneer and Voyager Probes

42. Clever path choice

44. Genesis and other future missions Moon’s orbit <= Sun

45. Multi-Moon Orbiter

46. Map of all the clever paths: Low energy passageways Image Source: Cici Koenig

50. What makes a comet or spacecraft move along strange paths?

52. Look at particle motion in field of only two bodies at a time

53. Jupiter and the Sun

54. Kepler Image source: http://www.if.ufrj.br/famous/kepler.jpg

55. Newton

57. UNSOLVABLE

60. All Forces Balance

61. Park At Your Own Risk All Forces Balance

62. Euler Image source: http://ods.schule.de/schulen/herder/aktuelles/euler.jpg

63. Lagrange

64. Lagrange Points L4 L5 L1 L2 L3 Lagrange

65. L1 L2

66. L1 L2 Poincaré “Chaos Theory”

67. L1 L2

68. L1 L2 WINDING OFF L1 ORBITL2 ORBIT Tubes WINDING ON

69. L1 L2 On One Tube WINDING OFF L1 ORBITL2 ORBIT WINDING ON

70. L1 L2 WINDING OFF L1 ORBITL2 ORBIT WINDING ON On Both Tubes

71. L1 L2 DEPARTING TUBE L1 GATEWAYL2 GATEWAY APPROACHING TUBE Inside The Tubes

76. Earth’s Neighborhood

77. Sun-Earth-Spacecraft: EL 1, EL 2, … Earth-Moon-Spacecraft: LL 1, LL 2, … LL 5

78. Sun-Earth-Spacecraft: EL 1, EL 2, … Earth-Moon-Spacecraft: LL 1, LL 2, … LL 5

79. Genesis Sample Return Mission HALO ORBIT

82. TUBES L2 GATEWAY MOON L1 GATEWAY STATION

83. TUBES L1 GATEWAY STATION L2 GATEWAY MOON EARTH EARTH L2 HALO ORBIT

84. Tube Hopping

85.  Earth L 2 Earth Rotating Frame Deploying Deep Space Telescopes

86. Lunar L1 Gateway Station

87. TPF @ Earth L2 STA-103 astronauts repairing the Hubble Space Telescope Telescope Servicing

88. Animation Source: Martin Lo, JPL

89. Moon Asteroids Mars Lunar L1 Gateway Station Deep Space Telescopes Transportation Hub

90. Sun-Earth L1, L2 Lunar L1 Gateway Moon Low Earth Orbit Earth Mars Earth’s Neighborhood Accessible Planetary Surfaces Outer Planets and beyond Sun, Mercury, Venus Solar System Metro Map

91. Jupiter’s Moons

92. Multi-Moon Orbiter

98. Jupiter Icy Moons Orbiter (JIMO)

100. Much more mapping to be done!

101. The End Unless otherwise stated, the source for all images not produced by Shane Ross or his co-authors and collaborators is NASA and the NASA websites www.jpl.nasa.gov and www.hq.nasa.gov