Imaging mode results of the Alsat-1 first Algerian microsatellite in orbit

On the 28/sup th/ of November 2002 and from Plesetsk in north of Russia, Cosmos-3M rocket put into a 700 km sun synchronous orbit the first Algerian microsatellite Alsat-1. Alsat-1 is 90 kg enhanced microsatellite, stabilised 3 axis for imaging mode and was designed and built by a join team of Surre...

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Hauptverfasser: Mohammed, A.M.S., Benyettou, M., Sweeting, M.N., Cooksley, J.R.
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:On the 28/sup th/ of November 2002 and from Plesetsk in north of Russia, Cosmos-3M rocket put into a 700 km sun synchronous orbit the first Algerian microsatellite Alsat-1. Alsat-1 is 90 kg enhanced microsatellite, stabilised 3 axis for imaging mode and was designed and built by a join team of Surrey Technology Limited - UK and Centre National des Techniques Spatiales Algeria under a know how transfer and training program. Alsat-1 is one of five microsatellites of the first Earth observation constellation specifically designed for disaster monitoring (DMC). Since Alsat-1 launch, the imager has taken more than 750 images. This paper describes the attitude determination control system algorithms to implement the imaging mode on Alsat-1. The attitude determination sensor required, is a magnetometer and sun sensor and the actuator required is a Y/Z wheels and magnetorquer coil. The specific attitude controllers and estimators used during this mode are explained. In orbit imaging mode results will be presented.
DOI:10.1109/RAST.2005.1512617