rabidferret t1_j5zfqvx wrote on January 26, 2023 at 5:12 PM Reply to comment by KingZarkon in Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725 Measuring a spacecraft's position and trajectory has a margin of uncertainty. Engines are not devices that can produce a known exact amount of thrust for an exact amount of time. Permalink Parent 4
rabidferret t1_j5zfqvx wrote
Reply to comment by KingZarkon in Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725
Measuring a spacecraft's position and trajectory has a margin of uncertainty. Engines are not devices that can produce a known exact amount of thrust for an exact amount of time.