../ dmsp_15_ephemeris_20110330.txt 22-Jun-2023 00:17 108118 dmsp_16_ephemeris_20110330.txt 22-Jun-2023 00:17 108232 dmsp_17_ephemeris_20110330.txt 22-Jun-2023 00:17 108205 dmsp_18_ephemeris_20110330.txt 22-Jun-2023 00:17 108270