2023
DOI: 10.46326/jmes.2023.64(3).10
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Effect of the low-order coefficients of the Earth gravity model in calculating the satellite orbit

Dung Ngoc Luong,
Trong Dinh Tran

Abstract: The Earth's gravity model is a crucial factor in determining satellite orbits. Scientific organizations such as GFZ Potsdam in Germany, GRGS Toulouse in France, and AIUB in Switzerland have established Earth gravity models with increasing precision of spherical harmonic coefficients. Low-order coefficients, including C ̅_21,( S) ̅_21, C ̅_10,C ̅_11,( S) ̅_11and C ̅_20, play a vital role in describing changes in the Earth's poles, geometric center, and flattening. To evaluate the impact of these coefficients an… Show more

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