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利用"火星快车"三程多普勒跟踪数据限定局部洛伦兹不变性
张羽飞1,2, 刘景昊1,2, 黄勇3, 谢懿1,2
1.南京大学 天文与空间科学学院, 南京 210093;2.上海市空间导航与定位技术重点实验室, 上海 200030;3.中国科学院 上海天文台, 上海 200030
摘要:
目前航天器的三程多普勒跟踪技术已经在深空探测的控制与导航领域起到了重要作用。利用包含了对局部洛伦兹不变性(LLI)以及局部位置不变性(LPI)原理有破坏的三程多普勒跟踪理论,研究分析了"火星快车"(MEX)三程多普勒跟踪数据的残差。这些多普勒观测于2009年8月7日和8日进行,利用了欧洲航天局(ESA)在澳大利亚新诺舍(New Norcia)的上行站和三个分别在中国上海、昆明以及乌鲁木齐的下行站。我们发现,这些观测结果给出的LLI上限在10-2的量级。但由于各观测站本身对频率测量的精度有限,这些数据并不适合于检验LPI。
关键词:  航天器技术;引力;多普勒跟踪
DOI:10.15982/j.issn.2095-7777.2015.02.007
分类号:
基金项目:国家自然科学基金(J1210039);上海市空间导航与定位技术重点实验室基金(14DZ2276100)
Spacecraft Doppler Tracking with Possible Violations of LLI and LPI: Preliminary Bounds on LLI from Mars Express
ZHANG Yufei1,2, LIU Jinghao1,2, HUANG Yong3, XIE Yi1,2
1.Department of Astronomy, Nanjing University, Nanjing 210093, China;2.Shanghai Key Laboratory of Space Navigation and Position Techniques, Shanghai 200030, China;3.Shanghai Astronomical Observatory, Shanghai 200030, China
Abstract:
Three-way spacecraft Doppler tracking is currently widely used and it plays an important role in the control and navigation of deep space missions. Using the theory of three-way Doppler tracking, including possible violations of the local Lorentz invariance (LLI) and the local position invariance (LPI), we analyzed the post-fit residuals of three-way Doppler tracking data of Mars Express. These Doppler observations were carried out from August 7th to 8th in 2009, with an uplink station administered by the European Space Agency at New Norcia in Australia and three downlink stations at Shanghai, Kunming and Urumqi in China. We find that, although these observations impose preliminary bounds on LLI at the level of 10-2, they are not suitable for testing LPI because of the configuration of these stations and the accuracy of the observations. To our knowledge, this is one of the first attempts in China to apply radio science to the field of fundamental physics.
Key words:  space vehicles;gravtitation;Doppler tracking