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Flight performance of TOPEX/POSEIDON star trackers

机译:TOPEX / POSEIDON星追踪器的飞行性能

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Abstract: The TOPEX/POSEIDON spacecraft was launched on August 10, 1992. This paper presents data on the measured performance of the ASTRA Star Trackers supplied by Hughes Danbury Optical Systems (HDOS) for this satellite. The HDOS ASTRA Star Tracker is a charge coupled device (CCD), microprocessor based replacement for the NASA Standard Fixed Head Star Tracker. The position and magnitude accuracy of the star trackers computed from measured flight data are compared with ground measurements and system models. The performance of novel transient rejection algorithms implemented in the ASTRA Star Tracker which allows uninterrupted operation in the South Atlantic Anomaly (SAA) where the sensor is subjected to high proton flux levels, also are presented. !10
机译:摘要:TOPEX / POSEIDON航天器于1992年8月10日发射升空。本文介绍了休斯·丹伯里光学系统公司(HDOS)为该卫星提供的ASTRA星跟踪仪的测量性能数据。 HDOS ASTRA Star Tracker是一种电荷耦合器件(CCD),是基于微处理器的NASA标准固定云台Star Tracker的替代品。根据测得的飞行数据计算出的恒星追踪器的位置和大小精度与地面测量和系统模型进行了比较。还介绍了在ASTRA Star Tracker中实现的新颖瞬态抑制算法的性能,该算法允许在传感器受到高质子通量水平影响的南大西洋异常(SAA)中不间断运行。 !10

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