国家海洋大气局说它购买卫星的政策和策略是以气象卫星预定寿命为依据的,然而,预算对购买卫星的数量和备份也起很大影响。据 NOAA 说,因为预计卫星寿命比它们实际工作的时间长,所以没有考虑替换的卫星。在 GOES-5卫星发生故障后,NOAA 动用了在轨的三颗卫星中最 The National Oceanic and Atmospheric Administration said its policies and tactics for the purchase of satellites are based on the projected lifetime of meteorological satellites. However, the budget also has a large impact on the number and backup of satellites purchased. According to NOAA, because satellite life expectancy is longer than they actually work, no replacement satellites are considered. After the failure of the GOES-5 satellite, NOAA used the most of the three satellites in orbit