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A Crew capsule is returning from the ISS, whose orbit is circular
with radius Re + 400 km. Prior to re-entry, the capsule will
Insert into a 200 km Coplanar parking orbit to validate a new
Safety system. The crew execute a Hohmann transfer to change their
orbit from that of the ISS to that of the parking orbit.
Compute the eccentricity of the transfer are.
Take M 398400 km³s-2 and R = 6378 km

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