../ dmsp_15_ephemeris_20171010.txt 22-Jun-2023 00:35 109676 dmsp_16_ephemeris_20171010.txt 22-Jun-2023 00:35 109585 dmsp_17_ephemeris_20171010.txt 22-Jun-2023 00:35 109538 dmsp_18_ephemeris_20171010.txt 22-Jun-2023 00:35 109532