../ dmsp_15_ephemeris_20110323.txt 22-Jun-2023 00:17 108060 dmsp_16_ephemeris_20110323.txt 22-Jun-2023 00:17 108137 dmsp_17_ephemeris_20110323.txt 22-Jun-2023 00:17 108196 dmsp_18_ephemeris_20110323.txt 22-Jun-2023 00:17 108342