Because of this, a set of satellite orbital elements very rapidly "ages" and for accurate predictions 'must' be updated every few days.

所以，人造卫星的轨道计算数据会很快就过期，如果你要准确计算它们的轨道，你就必须即使更新它们。

youdao

Because of this, a set of satellite orbital elements very rapidly "ages" and for accurate predictions 'must' be updated every few days.

所以，人造卫星的轨道计算数据会很快就过期，如果你要准确计算它们的轨道，你就必须即使更新它们。

youdao