../ dmsp_15_ephemeris_20221228.txt 22-Jun-2023 16:34 109257 dmsp_16_ephemeris_20221228.txt 22-Jun-2023 16:34 109319 dmsp_17_ephemeris_20221228.txt 22-Jun-2023 16:34 109293 dmsp_18_ephemeris_20221228.txt 22-Jun-2023 16:34 109391