NASA’s OSIRIS-REx is ready for touchdown on asteroid Bennu. On Aug. 11, the mission will perform its “Matchpoint” rehearsal – the second practice run of the Touch-and-Go (TAG) sample collection event. The rehearsal will be similar to the Apr. 14 “Checkpoint” rehearsal, which practiced the first two maneuvers of the descent, but this time the spacecraft will add a third maneuver, called the Matchpoint burn, and fly even closer to sample site Nightingale – reaching an altitude of approximately 131 ft (40 m) – before backing away from the asteroid.

This artist’s rendering shows OSIRIS-REx spacecraft descending towards asteroid Bennu to collect a sample of the asteroid’s surface.

Image Credit: NASA/Goddard/University of Arizona

NASA的OSIRIS-RE(Origins Spectral Interpretation Resource Identification Security Regolith Explorer起源光谱解释、资源识别安全风化层探测仪)已准备好在小行星贝努着陆。8月11日,任务将进行“ Matchpoint”演练,这是Touch-and-Go(TAG)样本采集活动的第二次练习。演练类似于4月14日的“检查点”演习,该演习进行了下降的前两次演习,但是这次飞船将进行第三次演习,称为Matchpoint燃烧,并飞近采样地点夜莺——在从小行星后退之前,到达约131英尺(40 m)的高度。


影像来源:NASA/Goddard/University of Arizona

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