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。
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。
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。
Planetary perturbations make the earth's orbit about the sun irregular.
行星的摄动使得地球绕太阳的轨道是不规则的。
Planetary perturbations make the earth's orbit about the sun irregular.
行星的摄动使得地球绕太阳的轨道是不规则的。
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