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1 前言ASTRO-E是X射线天文观测卫星,预定于2000年2月发射。该卫星载有用做观测仪器的X射线望远镜。从性质上来说,X射线难以弯曲,因此焦距长。为实现高性能X射线望远镜,ASTRO-E卫星在轨道上利用EOB(可伸展光学试验台)将望远镜筒部伸展开。展开后卫星本体全长达6.5m。随着伸展,与重量相比,卫星具有较大的惯性矩,承受较大的重力梯度力矩。该ASTRO-E卫星具有独特的安全保障(Safe-hold)控制系统,最适于强干扰的环境。现就该系统的设计概念、动力学、姿
1 Introduction ASTRO-E is an X-ray astronomical observation satellite and is scheduled to be launched in February 2000. The satellite contains an X-ray telescope used as an observation instrument. In nature, X-rays are difficult to bend and therefore have a long focal length. For high-performance X-ray telescopes, ASTRO-E satellites use EOBs (extensible optical test benches) to extend the telescope barrel in orbit. Expand the satellite body up to 6.5m. With extension, compared with the weight of the satellite has a larger moment of inertia, to withstand greater gravity gradient moment. The ASTRO-E satellite has a unique Safe-hold control system that is best suited for environments with strong interference. Now on the system design concepts, dynamics, posture