../ dmsp_15_ephemeris_20200413.txt 22-Jun-2023 00:43 109608 dmsp_16_ephemeris_20200413.txt 22-Jun-2023 00:43 109664 dmsp_17_ephemeris_20200413.txt 22-Jun-2023 00:43 109702 dmsp_18_ephemeris_20200413.txt 22-Jun-2023 00:43 109612