The rocket successfully lifted a reconnaissance satellite to low Earth orbit.

火箭成功的将一枚勘测卫星送入地球低轨道。

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The result is satisfactory by using a method of the artificial earth satellite orbit determination from range rate observations to fit the free-flight trajectory of rocket.

用人造地球卫星轨道计算的测速定轨方法，去拟合火箭飞行弹道的自由段，取得了比较满意的结果。

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In nineteen fifty-seven, a Soviet military rocket carried a small satellite into Earth orbit.

VOA: special.2009.06.10

The rocket was attempting to carry a 19.5kg satellite to a low-Earth orbit of 450km.

BBC: The new Falcon 1 rocket has been lost on its maiden flight.

UoSat 12, an experimental micro-satellite that observes the Earth and demonstrates advanced communication and position finding technologies, was launched last year by a Russian rocket from the Baikonur Cosmodrome in Kazakstan.

BBC: Earth orbit gets wired