../ dmsp_15_ephemeris_20220101.txt 22-Jun-2023 16:31 106426 dmsp_16_ephemeris_20220101.txt 22-Jun-2023 16:31 106438 dmsp_17_ephemeris_20220101.txt 22-Jun-2023 16:31 106377 dmsp_18_ephemeris_20220101.txt 22-Jun-2023 16:31 106416