../ dmsp_15_ephemeris_20220325.txt 22-Jun-2023 17:06 108107 dmsp_16_ephemeris_20220325.txt 22-Jun-2023 17:06 108241 dmsp_17_ephemeris_20220325.txt 22-Jun-2023 17:06 108145 dmsp_18_ephemeris_20220325.txt 22-Jun-2023 17:06 108207