Spy satellite

A spy satellite is an Earth observation satellite or communications satellite deployed for military or intelligence applications.

Examples of spy satellite missions:

• high resolution photography (IMINT)
• communications eavesdropping (SIGINT)
• covert communications (HUMINT)
• enforcement of nuclear test bans
• detection of missile launches

See also:

• Corona, the first US spy satellite took photographs of Russia and then ejected the negatives which descended to the Earth by parachute.
• KH-9

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External links:

• http://www.fas.org/irp/imint/
• Chronology of spy satellites
• Java 3D satellite tracker