../ dmsp_15_ephemeris_20130413.txt 22-Jun-2023 00:22 109726 dmsp_16_ephemeris_20130413.txt 22-Jun-2023 00:22 109727 dmsp_17_ephemeris_20130413.txt 22-Jun-2023 00:22 109749 dmsp_18_ephemeris_20130413.txt 22-Jun-2023 00:22 109638