../ dmsp_15_ephemeris_20201125.txt 22-Jun-2023 00:45 109384 dmsp_16_ephemeris_20201125.txt 22-Jun-2023 00:45 109311 dmsp_17_ephemeris_20201125.txt 22-Jun-2023 00:45 109301 dmsp_18_ephemeris_20201125.txt 22-Jun-2023 00:45 109360