The article presents the results of an experimental study of the external magnetic field orientation and magnitude influence on the rubidium atomic clock, simulating the influence of the geomagnetic field on the onboard rubidium atomic clock of navigation satellites. The tensor component value of the atomic clock frequency light shift on the rubidium cell was obtained, and this value was $~$2 Hz. The comparability of the relative light shift $\left(~{10}^{-9}\right)$ and the regular gravitational correction $\left(4\times {10}^{-10}\right)$ to the frequency of the rubidium atomic clock was shown. The experimental results to determine the orientational shift influence on the rubidium atomic clock frequency were presented. A significant effect on the relative frequency instability of a rubidium atomic clock at a level of ${10}^{-12}$$\left({10}^{-13}\right)$ for rotating external magnetic field amplitudes of 1.5 A/m and 3 A/m was demonstrated. This magnitude corresponds to the geomagnetic field in the orbit of navigation satellites. The necessity of taking into account various factors (satellite orbit parameters and atomic clock characteristics) is substantiated for correct comparison of corrections to the rubidium onboard atomic clock frequency associated with the Earth’s gravitational field action and the satellite orientation in the geomagnetic field.

中文翻译：

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Rub原子钟的引力和光频移比较

本文介绍了外部磁场方向和幅度对the原子钟的影响的实验研究结果，模拟了地磁场对导航卫星车载rub原子钟的影响。获得atomic电池上原子钟频率光偏移的张量分量值，该值为$〜$2赫兹 相对光移的可比性$（〜{10}^{-9}）$ 和常规的重力校正 $（4\times {10}^{-10}）$示出了atomic原子钟的频率。给出了确定取向偏移对the原子时钟频率影响的实验结果。对of原子钟的相对频率不稳定性的显着影响是${10}^{-12}$$（{10}^{-13}）$证明了旋转外部磁场的振幅为1.5 A / m和3 A / m。该大小对应于导航卫星轨道中的地磁场。证实了考虑各种因素（卫星轨道参数和原子钟特性）的必要性，以正确比较与地球重力场作用和地磁场中卫星方向有关的on载原子钟频率的校正。