../ dmsp_15_ephemeris_20120515.txt 22-Jun-2023 00:19 109654 dmsp_16_ephemeris_20120515.txt 22-Jun-2023 00:19 109632 dmsp_17_ephemeris_20120515.txt 22-Jun-2023 00:19 109591 dmsp_18_ephemeris_20120515.txt 22-Jun-2023 00:19 109589