Series of large IMINT
satellites, first launched in 1959, and continuing to the present day.
The series started with the KH-1 thru KH-4 CORONA
, and continued through the KH-12 Improved CRYSTAL
, passing through codenames KH-5 ARGON
, KH-6 LANYARD
, KH-7/8 GAMBIT
, KH-9 HEXAGON
, KH-10 DORIAN
, and KH-11 KENNAN/CRYSTAL
. CORONA, ARGON, and LANYARD images have been declassified as of 2-22-1995 and are available to the public.