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标题：Space base laser torque applied on LEO satellites of various geometries at satellite’s closest approach
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作者：N.S. Khalifa
期刊名称：NRIAG Journal of Astronomy and Geophysics
印刷版ISSN：2090-9977
电子版ISSN：2090-9985
出版年度：2013
卷号：2
期号：2
页码：266-271
DOI：10.1016/j.nrjag.2013.12.004
语种：English
出版社：Elsevier
摘要：AbstractIn light of using laser power in space applications, the motivation of this paper is to use a space based solar pumped laser to produce a torque on LEO satellites of various shapes. It is assumed that there is a space station that fires laser beam toward the satellite so the beam spreading due to diffraction is considered to be the dominant effect on the laser beam propagation. The laser torque is calculated at the point of closest approach between the space station and some sun synchronous low Earth orbit cubesats. The numerical application shows that space based laser torque has a significant contribution on the LEO cubesats. It has a maximum value in the order of 10−8Nm which is comparable with the residual magnetic moment. However, it has a minimum value in the order 10−11Nm which is comparable with the aerodynamic and gravity gradient torque. Consequently, space based laser torque can be used as an active attitude control system.
关键词：KeywordsThe Attitude Determination and Control System (ADCS)Radiation torqueSolar pumped laserGeocentric equatorial coordinate systemsSpherical and cylindrical coordinate systems and sun synchronous LEO cubesats