Three-dimensional map of the atmospheric trajectories (red dots) of a close pair 069–070 (plot A, meteor 069 on the right and 070 on the left) and a triplet 06C13260A, 06C13260B, and 06C13261 (plot B, meteor 260A on the right, 260B in the middle, 261 on the left) and their horizontal and vertical projections (blue lines). The x-axis represents the geographic longitude, the y-axis the geographic latitude, and the z-axis the height. Each red dot shows the position of the meteor at a given video frame. The time between one dot and the next is 0.04 s.