../ dmsp_15_ephemeris_20201108.txt 22-Jun-2023 00:45 109579 dmsp_16_ephemeris_20201108.txt 22-Jun-2023 00:45 109526 dmsp_17_ephemeris_20201108.txt 22-Jun-2023 00:45 109357 dmsp_18_ephemeris_20201108.txt 22-Jun-2023 00:45 109409