BIRD attitude determination and control system
Terzibaschian, T. (2001) BIRD attitude determination and control system. In: Small Satellites for Earth Observation, Digest of the 3rd International Symposium of the International Academy of Astronautics, Berlin, April 2-6, 2001, 3, p. 405. Wissenschaft & Technik Verlag. 3rd IAA Symposium on Small Satellites for Earth Observation, April 2-6, 2001, Berlin, Germany. ISBN 3-89685-566-2.
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BIRD is a small satellite for Earth observation. It has a mass of 90 kg and approximately 4 kg m² moments of inertia. The altitude will be of about 600 km. The launch is expected in May 2001. The satellite attitude will be most of the time sun pointing. In Earth observation mode it is nadir pointing. For some special purposes the attitude can be inertial pointing or pointing to a defined target on ground. A transition from one pointing mode to another one will be performed by one single axis slew maneuver. The pointing accuracy is required as 7 arc minutes attitude bias (1s) and jitter amplitude of 5 arc minutes (1s) for most of the target pointing modes. The attitude can be commanded always with a rate and an orientation bias, if required. The available sensors are: · 2 star cameras, · 3 ring laser gyros, · 2 4Pi sun sensor systems, · 1 3-axis magnetometer, · 1 GPS receiver. Based on the GPS measurements an on board estimation of WGS 84 position, velocity and a nominal local geomagnetic field vector is available. The actuators are 4 reaction wheels in tetraedric mounting configuration as primary actuators and 3 pairs of orthogonal air coil pairs (magnetic torque).
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||BIRD attitude determination and control system|
|Journal or Publication Title:||Small Satellites for Earth Observation, Digest of the 3rd International Symposium of the International Academy of Astronautics, Berlin, April 2-6, 2001|
|Page Range:||p. 405|
|Publisher:||Wissenschaft & Technik Verlag|
|Series Name:||Digest of the International Symposium of the International Academy of Astronautics|
|Keywords:||attitude control, attitude determination|
|Event Title:||3rd IAA Symposium on Small Satellites for Earth Observation, April 2-6, 2001, Berlin, Germany|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institut für Weltraumsensorik und Planetenerkundung|
|Deposited By:||Ute Dombrowski|
|Deposited On:||16 Sep 2005|
|Last Modified:||14 Jan 2010 18:53|
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