KH-11 Kennen
LocationSpace (LEO)
Year1976 (first)
Size19.5 m long
TypeReconnaissance
About KH-11 Kennen
US optical reconnaissance satellites. Similar in size to the Hubble Space Telescope but pointed downward. Believed to have resolution of 15 cm or better. A leaked estimate suggests they can read newspaper headlines from orbit. Still in operation as Advanced KH-11.