PSCI 3607 Lecture Notes - Lecture 6: United States Space Surveillance Network, Advanced Extremely High Frequency, Radarsat Constellation
11 Apr 2017
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Civilian communication satellites: looking down on earth. 1960s: canadian satellite alouette 1962 to look at northern lights. Lasted until 1975 even though it was only meant to last 3 years. Now more than 40 countires: civilian canada arm satellite. 1980"s onward: earth imaging, radarsat i (1995) started by mulroney, finished under chretien. Sells images of earth to whoever wants it: radarsat ii (2007) Ready to be launched in 2001 but us refused to launch it scheduled to be launched by nasa. Security threat: resolution too good: canada has never had a satellite launching location because the northern hemisphere is not is not ideal. It"s better close to the equator and ocean or big open space: polar epsilon i payload. Tracks ships, aircraft, cruise missile individuals: polar epsilon ii. Integrate ship signals: currently - radarsat constellation (in the works) When you lose sight of one satellite, another one will come around (within approx.
