Orbital Shotguns
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Shot Gun
How To Use The Orbital Shotguns
In the first step I made a wild guess that it would take between .5 and 1 km/sec to get from the moon to L2. After entering values, the Submit button must be clicked.
Pellet 4 falls back towards the moon while Pellet 5 flies into outer space.
Using pull down menus, pellet 4's burn is used for the new Pellet 1 and pellet's 5's for the new Pellet 11.
Each time changes are made, the Submit button must be clicked.
By repeatedly refining shotgun blasts, you can get closer and closer to your target.
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Launching from Earth orbit
Earth Launch Graphic
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Launching from Moon Orbit
Moon Launch Illustration
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PCR3BP - Planar Circular Restricted 3 Body Problem
PCR3BP graphic
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Phobos Tether
Phobos Tether
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Hop's Gallery
(Shameless self promotion). Please check out my paintings and drawings.
Margarita & Nico
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Some of My Other Space Pages:
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Hohmann Launch Window Schedule
Gives launch windows for hohmann orbits from one planet to another.
Includes a spreadsheet where you can input departure and destination planets
as well as apogees and perigees of parking orbits about the planets.
Trip times, synodic periods and delta vees are calculated.
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Delta Vee Map
A whimsicly illustrated delta vee map to some near earth destinations.
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Outside Links:
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Online Textbook
Talks about 3-body problem, dynamical systems, space mission design.
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Astrojava
Lunar Trajectory Simulation and other stuff.
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Lagrange Point Finder
Helps find L1 and L2 as well as other Lagrange locations in various systems.
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Bob Jenkins' Orbit Simulations
Jenkins wrote orb.jar, the Java orbital simulator my simulations are based on.
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Orbiter
An orbital simulation program as well as a community of users.
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Ken's Lunar Library
Ken Murphy's list of EML1 pages and other Lagrange links