The last confirmed telemetry from the lander was at 80-90 meters above the surface, doing over 30 km per hour still [ Live coverage: Contact lost with Japanese moon lander – Spaceflight Now ]. However, radio enthusiasts who were monitoring the signal have seen a suggestion that the vehicle did soft land - and something happened after. Speculation is the thrusters didn't shut off and the lander, in effect, bounced [
I should probably add that, at this point, it seems likely the lander went bingo fuel at around 30-90 meters up and fell - it is possible that, at that point, it had come close enough to zero velocity relative to the surface to create the doppler signals UHF SATCOM posted about.
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