Analysis of information sources in references of the Wikipedia article "CORONA (satellite)" in English language version.
This designation system came into use during 1962 with the 4th camera system, with its predecessors retroactively identified as KH-1, KH-2, and KH-3.
This designation system came into use during 1962 with the 4th camera system, with its predecessors retroactively identified as KH-1, KH-2, and KH-3.