../ dmsp_15_ephemeris_20221208.txt 22-Jun-2023 16:34 109358 dmsp_16_ephemeris_20221208.txt 22-Jun-2023 16:34 109321 dmsp_17_ephemeris_20221208.txt 22-Jun-2023 16:34 109260 dmsp_18_ephemeris_20221208.txt 22-Jun-2023 16:34 109458