“嫦娥三号”发射前夕,北京航天飞行控制中心轨道室技保机房里发生了一场争论。“该数字精确到小数点后4位已完全满足任务需求,再提高会大大增加计算耗时和计算量。”一位控制专家有理有据地说。“我认为应该精确到小数点后6位。”另一位控制专家坚持己见。最后,轨道室主任出于精益求精的 On the eve of the launch of “Chang’e III”, an argument arose in the technical security room of the orbital room of the Beijing Aerospace Control Center. “This figure is accurate to 4 after the decimal point has fully meet the needs of the task, and then increase will greatly increase the computational time and computational burden. ” A control expert has reason to say. “I think it should be accurate to 6 digits after the decimal point. ” Another control expert insisted. Finally, the track director is out for excellence