../ dmsp_15_ephemeris_20150413.txt 09-Nov-2025 23:20 109471 dmsp_16_ephemeris_20150413.txt 09-Nov-2025 23:20 109632 dmsp_17_ephemeris_20150413.txt 09-Nov-2025 23:20 109725 dmsp_18_ephemeris_20150413.txt 09-Nov-2025 23:20 109743 dmsp_19_ephemeris_20150413.txt 09-Nov-2025 23:20 109676