../ dmsp_15_ephemeris_20120822.txt 22-Jun-2023 00:20 109592 dmsp_16_ephemeris_20120822.txt 22-Jun-2023 00:20 109654 dmsp_17_ephemeris_20120822.txt 22-Jun-2023 00:20 109801 dmsp_18_ephemeris_20120822.txt 22-Jun-2023 00:20 109585