10ms is the absolute maximum difference in time, if the source was located on a line running through the two detectors. If the source was located on a perpendi

10ms is the absolute maximum difference in time, if the source was located on a line running through the two detectors. If the source was located on a perpendicular bisector of the line running through the two detectors, the difference in time between detections at the two detectors would be zero. Any value between the two is possible depending on the geometry.