../ dmsp_15_ephemeris_20200620.txt 22-Jun-2023 00:44 109570 dmsp_16_ephemeris_20200620.txt 22-Jun-2023 00:44 109434 dmsp_17_ephemeris_20200620.txt 22-Jun-2023 00:44 109653 dmsp_18_ephemeris_20200620.txt 22-Jun-2023 00:44 109520