../ dmsp_15_ephemeris_20200605.txt 22-Jun-2023 00:44 109550 dmsp_16_ephemeris_20200605.txt 22-Jun-2023 00:44 109471 dmsp_17_ephemeris_20200605.txt 22-Jun-2023 00:44 109580 dmsp_18_ephemeris_20200605.txt 22-Jun-2023 00:44 109471