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.