Encyclopedia Astronautica
Spirale


Système Préparatoire Infra-Rouge pour l'ALErte - preparatory infrared warning system. French government program to develop a missile early warning system, using infrared satellite imagery to detect ballistic missile launch and trajectory during boost phase. The demonstrator system included two 120 kilogram (260 lb) microsatellites and an alert and monitoring ground segment.

First Launch: 2009.02.11.
Number: 2 .

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Associated Countries

Spirale Chronology


2009 February 11 - . 22:09 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA.
  • Spirale A - . Nation: France. Agency: Arianespace. Spacecraft: Spirale. USAF Sat Cat: 33751 . COSPAR: 2009-008C. Apogee: 35,693 km (22,178 mi). Perigee: 631 km (392 mi). Inclination: 1.8000 deg. Period: 637.60 min.
  • Spirale B - . Nation: France. Agency: Arianespace. Spacecraft: Spirale. USAF Sat Cat: 33752 . COSPAR: 2009-008D. Apogee: 35,681 km (22,171 mi). Perigee: 641 km (398 mi). Inclination: 1.8000 deg. Period: 637.60 min.

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