../ dmsp_15_ephemeris_20201127.txt 22-Jun-2023 16:34 109531 dmsp_16_ephemeris_20201127.txt 22-Jun-2023 16:34 109499 dmsp_17_ephemeris_20201127.txt 22-Jun-2023 16:34 109321 dmsp_18_ephemeris_20201127.txt 22-Jun-2023 16:34 109429