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Helios 2 (France) : ウィキペディア英語版 | Helios 2 (satellite)
The Helios 2 system includes Helios 2A and Helios 2B, both of which are European military observation satellites used by France, Belgium, Spain and Greece.〔http://www.astrium.eads.net/en/programme/helios-ii.html〕 Helios 2A was launched on December 18, 2004 by an Ariane 5 rocket from French Guiana. Helios 2B was launched five years later on December 18, 2009, carried also by an Ariane 5. The two satellites are identical.〔(HELIOS – CNES )〕 Their ground resolution is about 30 cm. ==See also==
* Hélios 1B
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