The segment exchange team preparing to move a primary mirror segment out of Keck 1 to the coating facility
Tag "segment"
The radio call goes out… “Mirror in the hall, mirror in the hall!” Everyone gets out of the way as a mirror segment is rolled down the central hallway. It is being moved to the coating facility where it will be cleaned, stripped and re-coated with a layer of fresh aluminum.
The team moving a mirror segment from the telescope to the coating facility
