../ dmsp_15_ephemeris_20220413.txt 22-Jun-2023 00:50 109495 dmsp_16_ephemeris_20220413.txt 22-Jun-2023 00:50 109595 dmsp_17_ephemeris_20220413.txt 22-Jun-2023 00:50 109647 dmsp_18_ephemeris_20220413.txt 22-Jun-2023 00:50 109552