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首页> 外文会议>International astronautical congress >PROPOSED TESTS OF GENERAL RELATIVITY WITH THE GALILEO 5 AND 6 NAVIGATION SATELLITES
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PROPOSED TESTS OF GENERAL RELATIVITY WITH THE GALILEO 5 AND 6 NAVIGATION SATELLITES

机译：与GALILEO 5和6导航卫星的一般相关性的拟议测试

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Einstein's theory of general relativity leads to various predictions that have already been verified by experiments with high precision, such as the perihelion shift of Mercury or the gravitational redshift. The best measurement of the gravitational redshift has been achieved with the Gravity Probe A experiment in 197G with an uncertainty of 1.4 x 10~(-4). Today, two of the Galileo navigation satellites provide us with an excellent opportunity to improve this uncertainty. GSAT0201 and GSAT0202 have accidentally been injected onto an eccentric orbit, so that the accurate, stable atomic clocks onboard experience a daily modulation of the gravitational potential resulting in a measurable dilation of time. Through an analysis of the data obtained by the satellites and by employing a sophisticated model for the influence of solar radiation pressure on the satellites' orbits we aim to determine the time dilation to an improved accuracy. We are also investigating if further effects on the clocks of the satellites might be in the range of detection. This project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR 50 WM 1548.
机译：爱因斯坦的广义相对论产生了各种预言，这些预言已经通过高精度的实验得到了验证，例如水星的近日点偏移或引力的红移。重力红移的最佳测量是通过重力探针A在197G中进行的，不确定度为1.4 x 10〜（-4）。今天，两颗伽利略导航卫星为我们提供了一个改善这种不确定性的绝好机会。 GSAT0201和GSAT0202意外地注入到一个偏心轨道上，因此，机载精确，稳定的原子钟每天都会受到重力的调制，从而导致时间的可测膨胀。通过对卫星获得的数据进行分析，并通过对太阳辐射压力对卫星轨道的影响采用复杂的模型，我们旨在确定时间膨胀以提高精度。我们还在调查对卫星时钟的进一步影响是否可能在检测范围之内。该项目得到德国航天局DLR的支持，联邦经济技术部（BMWi）提供的资金为DLR 50 WM 1548。

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