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4 votes
2 answers
139 views

Using Orbital Rings to Achieve High Escape Velocity

2 votes
1 answer
91 views

Is it possible to change a satellite's eccentricity without changing semimajor axis (instantaneous maneuver paradigm)? What else needs to "give"?

10 votes
4 answers
3k views

What is the velocity of the ISS relative to the Earth's surface?

2 votes
1 answer
85 views

Radial hyperbolic trajectories

1 vote
0 answers
39 views

What is the order of magnitude of perturbing forces in a lunar orbit in relation to the orbital altitude?

2 votes
0 answers
88 views

How to calculate the ascending and descending node, as well as the true anomaly

2 votes
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35 views

How to determine Euler parameters?

25 votes
5 answers
3k views

Delta-v to hit the moon: is reaching Lunar L1 enough?

1 vote
0 answers
34 views

How to apply primer vector theory to trajectory optimization under perturbed two-body problem?

7 votes
3 answers
2k views

How long does one orbit around the Moon take in a typical parking orbit for a stage a lander is going to meet?

2 votes
2 answers
98 views

Integration of Varying Forces, Impulses in Simulators

2 votes
2 answers
180 views

Will there be a controll mechanism to keep spacex starship in a controlled position during coasting and/or reentry?

6 votes
2 answers
4k views

How to implement SGP4 C++, satellite propagator?

7 votes
1 answer
787 views

What's the point of characteristic energy?

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