../ dmsp_15_ephemeris_20201017.txt 22-Jun-2023 00:45 109630 dmsp_16_ephemeris_20201017.txt 22-Jun-2023 00:45 109665 dmsp_17_ephemeris_20201017.txt 22-Jun-2023 00:45 109552 dmsp_18_ephemeris_20201017.txt 22-Jun-2023 00:45 109474