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Оценка влияния релятивистских эффектов на траекторию движения искусственных спутников Земли

Оценка влияния релятивистских эффектов на траекторию движения искусственных спутников Земли

Abstract

The influence of relativistic effects on the trajectory of the satellites GOCE and GLONASS was estimated on the daily time interval. The size of relativistic effect was estimated by comparing of two trajectories. The trajectories were constructed by numerical integration of Everhart. To construct a first trajectory (orbit of Kepler) was used Newtonian equations of motions, to construct of second trajectory was used relativistic equations of motions. Differences orbits for the satellite GOCE was totaled 2.82 meters on the daily time interval, and differences for GLONASS satellite was totaled 0.35 meters. Experiments showed that relativistic effects have influenced only argument of perigee and mean anomaly. It is concluded that the periodic changes of orbital elements is greater than the secular changes. The inclusion of relativistic effects is needed at the present level of the accurate orbital calculations.

Выполнена оценка влияния релятивистских эффектов на траектории движения спутников GOCE и ГЛОНАСС на суточном интервале времени. Величина эффектов оценивалась путем сравнения двух траекторий, построенных методом численного интегрирования Эверхарта. Для построения одной траектории (кеплеровой орбиты) использовались ньютоновские уравнения движения, для построения другой – релятивистские уравнения движения. На суточном интервале расхождения орбит для спутника GOCE составили 2,82 метра, для спутника ГЛОНАСС – 0,35 метра. Эксперименты показали, что релятивистские эффекты оказали влияние только на аргументы перигея и средние аномалии. Сделан вывод о том, что на суточном интервале периодические изменения элементов орбиты больше, чем вековые смещения, и учет релятивистских эффектов необходим на современном уровне точности вычислений орбит.

Keywords

релятивистские уравнения движения, кеплерова орбита, пространственно-временная метрика Шварцшильда, начальные условия движения, численное интегрирование, шварцшильдовское смещение перигея

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average