In the latest landing video, it seems the Falcon 9 just hovered for a moment above the ship. That being said, it begs the question, how does the booster know where the ground is? Does it purely work off of GPS, a 1 way radar/beacon type system from the landing zone, radar from the rocket, or some means that I'm not aware of?


When commenting on one of the early water landings, Elon Musk mentioned there's a radar altimeter (which was calibrated for flat, hard surfaces and might have trouble detecting the water surface as a result).
Can't find a primary source for this, though.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.