>>2806559 Q from lb
KEYHOLE also known as BIG BIRD 9
KH-9 HEXAGON main features
KH-9 Hexagon during assembly by Lockheed
KH-9 (BYEMAN codename HEXAGON), commonly known as Big Bird[1] or Keyhole-9, was a series of photographic reconnaissance satellites launched by the United States between 1971 and 1986. Of twenty launch attempts by the National Reconnaissance Office, all but one were successful.[2] Photographic film aboard the KH-9 was sent back to Earth in recoverable film return capsules for processing and interpretation. The best ground resolution achieved by the main cameras was better than 0.6 meters.[3]
Q, says this was put on display a couple years ago after being decommissioned in Sep 2011... Clarify, please?