../ dmsp_15_ephemeris_20190225.txt 22-Jun-2023 00:39 108092 dmsp_16_ephemeris_20190225.txt 22-Jun-2023 00:39 108119 dmsp_17_ephemeris_20190225.txt 22-Jun-2023 00:39 108157 dmsp_18_ephemeris_20190225.txt 22-Jun-2023 00:39 108013