elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

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.

Full text not available from this repository.

Abstract

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)
Additional Information: LIDO-Berichtsjahr=2001,
Title:BIRD attitude determination and control system
Authors:
AuthorsInstitution or Email of Authors
Terzibaschian, T.UNSPECIFIED
Date:2001
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
Volume:3
Page Range:p. 405
Editors:
EditorsEmail
Röser, H. P.UNSPECIFIED
Sandau, R.UNSPECIFIED
Valenzuela, A.UNSPECIFIED
Publisher:Wissenschaft & Technik Verlag
Series Name:Digest of the International Symposium of the International Academy of Astronautics
ISBN:3-89685-566-2
Status:Published
Keywords:attitude control, attitude determination
Event Title:3rd IAA Symposium on Small Satellites for Earth Observation, April 2-6, 2001, Berlin, Germany
Organizer:IAA
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
Location: Berlin-Adlershof
Institutes and Institutions:Institut für Weltraumsensorik und Planetenerkundung
Deposited By: Ute Dombrowski
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 18:53

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.