../ dmsp_15_ephemeris_20130628.txt 22-Jun-2023 00:22 109505 dmsp_16_ephemeris_20130628.txt 22-Jun-2023 00:22 109541 dmsp_17_ephemeris_20130628.txt 22-Jun-2023 00:22 109650 dmsp_18_ephemeris_20130628.txt 22-Jun-2023 00:22 109643