The laser ranging retro-reflector now deployed at Tranquility Base consists of an array assembly housing 100 fused-silica retro-reflectors mounted on a pallet-aiming assembly resting on the lunar surface. The array assembly serves to hold, optically align, and thermally isolate the retro-reflectors to preserve optimum optical performance at all operating temperatures in the expected range from -300 to 250 F.
The Apollo 11 laser ranging retro-reflector array
1971-01-01
Miscellaneous
No indication
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