- US Hexagon spy satellite was "responsible for preventing World War III'
- CNN's "Declassified" reveals a secret deep-sea mission to find lost satellite film, Sunday, 10 p.m. ET/PT
(CNN)Sorry to break it to you, but Google Earth ain't all that.
Hexagon's amazing delivery system
Altitude: 80-370 nautical miles (92-426 miles)
Mission duration: 124 days average
Panoramic cameras: Perkin-Elmer, 60-inch focal length f/3.0, aperture 20 inches
Mapping camera: Itek, 12-inch focal length f/6.0, 9.5 in film, with two Itek 10-in focal length f/2.0, 70mm film cameras for star-tracking position reference
Film: length 320,000 feet (about 60 miles), width 6.6 inches
Number of film return capsules (aka "buckets"): Four (five if mapping camera used)
Maximum film load per capsule: 52,000-77,500 feet
Maximum film weight per capsule: 500 pounds
Capsule weight: 956 pounds
Source: National Museum of the USAF