../ dmsp_15_ephemeris_20130704.txt 22-Jun-2023 00:22 109390 dmsp_16_ephemeris_20130704.txt 22-Jun-2023 00:22 109571 dmsp_17_ephemeris_20130704.txt 22-Jun-2023 00:22 109610 dmsp_18_ephemeris_20130704.txt 22-Jun-2023 00:22 109630