../ dmsp_15_ephemeris_20131025.txt 22-Jun-2023 00:23 109512 dmsp_16_ephemeris_20131025.txt 22-Jun-2023 00:23 109451 dmsp_17_ephemeris_20131025.txt 22-Jun-2023 00:23 109583 dmsp_18_ephemeris_20131025.txt 22-Jun-2023 00:23 109491