../ dmsp_15_ephemeris_20201226.txt 22-Jun-2023 00:45 109406 dmsp_16_ephemeris_20201226.txt 22-Jun-2023 00:45 109352 dmsp_17_ephemeris_20201226.txt 22-Jun-2023 00:45 109281 dmsp_18_ephemeris_20201226.txt 22-Jun-2023 00:45 109268