../ dmsp_15_ephemeris_20150413.txt 22-Jun-2023 00:27 109471 dmsp_16_ephemeris_20150413.txt 22-Jun-2023 00:27 109632 dmsp_17_ephemeris_20150413.txt 22-Jun-2023 00:27 109725 dmsp_18_ephemeris_20150413.txt 22-Jun-2023 00:27 109743 dmsp_19_ephemeris_20150413.txt 22-Jun-2023 00:27 109676