Private Japanese moon lander crashed after being confused by a crater

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Private Japanese moon lander crashed after being confused by a crater
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The lander successfully completed eight out of nine mission milestones despite its unsuccessful landing.

The private Japanese moon lander Hakuto-R crashed in late April during its milestone landing attempt because its onboard altitude sensor got confused by the rim of a lunar crater., which built the spacecraft, revealed that the unexpected terrain feature led the lander's onboard computer to decide that its altitude measurement was wrong and rely instead on a calculation based on its expected altitude at that point in the mission.

As a result, the computer was convinced the probe was lower than it actually was, which led to"While the lander estimated its own altitude to be zero, or on the lunar surface, it was later determined to be at an altitude of approximately 5 kms [3.1 miles] above the lunar surface," ispace said in a statement released on Friday ."After reaching the scheduled landing time, the lander continued to descend at a low speed until the propulsion system ran out of fuel.

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