Off-target distance is a key index for measuring quality of borehole trajectory, of which the key is to find out solution to coordinates of target points.

靶心距是衡量井眼轨迹质量的一个关键指标，计算靶心距的核心问题是求解入靶点的坐标。

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Tail winds might account for some of the off-target distance, NASA's Gavin Mendeck said, but the actual landing spot was well within the expected range of uncertainty, or the area where the rover could well have ended up.

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O'Gara was also off-target with a long-distance effort and then David Wallace appeared to have crossed the Edinburgh line but no try was given.

BBC: Edinburgh 12-7 Munster