当损失了福布斯1号探测器后,地面人员重新审查了福布斯2号探测器的飞行计划,防止发生类似错误。福布斯2号探测器原定在1989年1月进入火星轨道前三四天作两次轨道机动,经审查决定在1月23日作一次机动,将探测器速度提高21米每秒。1月29日发出指令,探测器减速(减少815米/秒),进入绕火星 After losing Forbes 1 detectors, ground personnel re-examined the Forbes 2 probe’s flight plan to prevent similar errors. The Forbes 2 was originally scheduled to maneuver two or four days before entering orbit in January 1989. After a review, it decided to maneuver on January 23 and increase its speed by 21 meters per second. On January 29, a directive was issued that the detector decelerate (reduce 815 m / s) and enter around Mars