Solar activity can knock satellites off track, raising the risk of collisions. Scientists are hoping improved atmospheric models will help. 鈥淚t鈥檚 not unlikely that we will get a large geomagnetic storm in the next four or five years,鈥� says Berger. 鈥淎nd that will really test the whole thing.鈥� The SWx TREC team in 欧美口爆视频 collaborates with Fang鈥檚 team at NOAA, trying to find ways to integrate the WAM-IPE model鈥檚 predictions of changes in atmospheric density into calculations of satellite orbits.听
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