Questions tagged [orbit-selection]
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Design of return trajectory from lunar polar orbit to Earth's atmosphere
Given a flight path angle, altitude and velocity at re-entry into the Earth's atmosphere, how do I go about designing the return trajectory from a polar orbit at 17km altitude about the lunar surface ...
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Ballistic missile typical trajectory - along which path is it supposed to travel between Russia, China and US?
Today I was puzzled when my son was holding a school globe asking me to show with my finger a trajectory of a (nuclear) ballistic missile flying from US to China and Russia and vice versa (from Russia ...
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Is there any reason to send space probes along the plane of our solar system instead of perpendicular to the plane of our solar system? [duplicate]
Is there any reason to send deep space probes (Pioneer and Voyager) along the plane of our solar system (maybe with a slight inclination) instead of perpendicular to the plane of our solar system?
If ...
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What is the fewest number of satellites required to have constant global coverage?
How can I guarantee global coverage with the fewest number of satellites? Assume that link margin isn't a problem.