All Questions
Tagged with lissajous-orbit orbital-mechanics
9 questions
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What happens to JWST after it runs out of propellant?
JWST will be orbiting L2 which is unstable equilibrium thus will require propellant for station keeping. JWST will carry propellant for 5-10 years.
What will happen once it runs out of propellant? ...
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Did DSCOVR travel "along the stable manifold of its future SE L1 Halo orbit" to get there?
I just wrote (and have since removed) the following paragraph in this answer to How many times do you have to circle the Earth to break orbit?:
As can be heard in this video SpaceX's launch of the ...
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Could JWST stay at L2 "forever"?
Using only reaction wheels powered by solar panel and the sunshield as a sail (in continuous active attitude control) to generate thrust from solar photon pressure in the desired direction, could JWST ...
user19132
4
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Do ("non-halo") Lissajous orbits have stable/unstable manifolds?
The question Did DSCOVR travel “along the stable manifold of its future SE L1 Halo orbit” to get there? is specific to DSCOVR's trajectory from Earth to its primarily heliocentric orbit near Sun-Earth ...
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6
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1
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Why put DSCOVR in a Lissajous orbit? Wouldn't a halo orbit completely avoid the Sun exclusion zone?
Halo orbits are a sub-class of Lissajous orbits. See this answer for (much) more on that.
DSCOVR's orbit will put it in it's Sun Exclusion Zone in about 2020 where the communications line of sight ...
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3
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Rendezvouses in halo or lissajous orbits
If a spacecraft was in an EM-L2 halo/lissajous orbit, and another craft would was going to approach EM-L2 a few days later, could they rendezvous immediately or is there a limitation when the second ...
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Is JWST actually in a Lissajous orbit? What will it look like? Implications for station-keeping?
Note: for lots of great background related to this question, see lagrangian points - The design of the halo orbit of the James Webb Space Telescope - Space Exploration Stack Exchange
There are ...
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8
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Why shouldn't we illustrate spacecraft trajectories on top of static zero velocity pseudo-potential surfaces?
Three-body spacecraft orbits1 are regularly discussed here and from time to time someone will include a pseudo-potential plot from Wikipedia in their explanation.
The discussion often goes south when ...
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Is a 2:1 "figure-eight" Lissajous orbit possible in the Circular Restricted Three Body Problem?
Was Queqiao in a halo or Lissajous orbit? Why do sources disagree? says
Proper halo orbits have the same period for their in-plane oscillations and out of plane oscillations, so they are closed ...
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