../ dmsp_15_ephemeris_20221208.txt 22-Jun-2023 00:54 109358 dmsp_16_ephemeris_20221208.txt 22-Jun-2023 00:54 109321 dmsp_17_ephemeris_20221208.txt 22-Jun-2023 00:54 109260 dmsp_18_ephemeris_20221208.txt 22-Jun-2023 00:54 109458