up with, and then at the correct moment changing to the same orbit as the target with no relative motion between the vehicles (for example, putting the tracker into a lower orbit, which has a shorter orbital period allowing it to catch up, then executing a Hohmann transfer back to the original orbital height).

First successful rendezvous

Rendezvous was first successfully accomplished by US astronaut Wally Schirra on December 15, 1965. Schirra

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