Once the satellite reached its orbit about four hours and 20 minutes after launch, GOES-P became GOES-15, one of the fleet of satellites necessary to predict weather in North America.

在发射后大约4小时20分钟，GOES - P将到达其预定轨道，成为GOES - 15号卫星，北美气候预报卫星系统的一员。

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They put a weather satellite into orbit about the earth.

他们把一颗气象卫星送入环绕地球的轨道。

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Copernicus was a Polish astronomer who believed that the earth and the other planets orbit about the sun and that earth is not at the center of the universe.

哥白尼，波兰天文学家，他认为地球并不是宇宙的中心，相反地球和其他的星球都是围绕着太阳旋转的。

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Knowing more about how the Yarkovsky effect changes an asteroid's orbit will help scientists better predict whether RQ36 will come near Earth.

VOA: special.2011.06.22

The next Royal Astronomer, Edmund Halley, spent another forty years gathering information about the moon's orbit.

VOA: special.2010.07.14

The planet's orbit lies about four billion five hundred million kilometers from the sun.

VOA: special.2011.07.27

Certainly, statistical analyses would suggest there are very many stars out there with terrestrial bodies in orbit about them.

BBC: Star 'eats' a planet

Dr Murray stressed there was no direct evidence these stars did have Earth-sized planets in orbit about them, but modelling had shown that if sufficient terrestrial material existed in a system it would eventually clump together into bodies as big as the Earth.

BBC: 'Hungry' stars reveal planet presence

The satellites would remain in orbit for about 45 days.

FORBES: Move Over, Drones - Here Come Disposable Satellites