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From 1957 to 2009, 3,764 Military Satellites were launched (successfully or not). These satellites could be classified in three broad categories: Applications, Services and Technology-oriented.   . . . % of all mili- tary spacecrafts % of al space- crafts launchedl 1,806 Military Applications: 48.1 % 26.3 % 1,215 Reconnaissance (‘spy’) Ssatellites 32.4 % 17.7 % 139 Missile Early Warning Satellites 3.9 % 2.1 % 297 Electronic Intelligence Satellites 7.4 % 4.1 % 12 Nuclear Tests Detection Satellites 0.3 % 0.2 % 153 Ocean Surveillance Satellites 4.1 % 2.2 % . . . . 1,362 Military Services: 36.3 % 19.9 % 792 Communications Satellites 21.1 % 11.6 % 393 Navigation Satellites 10.5 % 5.7 % 126 Radar-Calibration Satellites 3.4 % 1.8 % 51 Meteo Satellites 1.4 % 0.7 % . . . . 586 Military Technology-Oriented: 15.6 % 8.6 % 47 Space Defense 1.2 % 0.7 % 46 Antisatellite Tests 1.2 % 0.7 % 35 Piloted Spaceships 0.9 % 0,5 % 458 Science & Technology Satellites 12.2 % 6.7 % Souce: © Claude Lafleur's Spacecraft Encyclopedia, 2005-2010 . Previous Table List of Tables Next Table

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© Claude Lafleur, 2004-10 Mes sites web: claudelafleur.qc.ca