Preparing Envisat for Mission Extension a Major Undertaking

PETER B. de SELDING

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Preparing Envisat for Mission Extension a Major Undertaking

机译：为扩大任务做好准备

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Moving the large Envisat environmental satellite into a lower orbit in October to minimize fuel use and extend the satellite's already longer-than-planned service life by three years will be equivalent to starting a new mission in terms of instrument calibration and ground communications, European Space Agency (ESA), officials said.rnIn addition to retuning the 8,000-kilogram Envisat's 10 observing instruments to adjust to the new orbit, ESA ground controllers will need to adapt their ground communications network to function with the new orbital parameters to ensure that Envisat's signals do not interfere with signals from the ERS-2 satellite.

机译：十月份将大型Envisat环境卫星移入较低轨道以最大程度地减少燃料消耗并将该卫星原本比计划更长的使用寿命延长三年，将相当于在仪器校准和地面通信方面开始新的任务，欧洲空间美国宇航局（ESA）官员说。rn除了重新调整8000公斤的Envisat观测仪器以适应新轨道外，ESA地面控制器还需要调整其地面通信网络，使其具有新的轨道参数，以确保Envisat的信号不要干扰ERS-2卫星发出的信号。

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《Space news》 |2010年第28期|P.6|共1页
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PETER B. de SELDING;
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Preparing Envisat for Mission Extension a Major Undertaking

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