../ dmsp_15_ephemeris_20221125.txt 22-Jun-2023 16:40 109446 dmsp_16_ephemeris_20221125.txt 22-Jun-2023 16:40 109370 dmsp_17_ephemeris_20221125.txt 22-Jun-2023 16:40 109408 dmsp_18_ephemeris_20221125.txt 22-Jun-2023 16:40 109406