为啥8点44分发射导弹

九月二十五号八时四十四分，中国人民解放军火箭军向太平洋相关公海海域成功发射一发携带训练模拟弹头的洲际弹道导弹，准确落入预定海域。

we did receive some advanced notification of this icbm test， and we believe that that was a good thing that was a step in the right direction and it does lead to preventing any misperception or miscalculation。