../ dmsp_15_ephemeris_20171128.txt 22-Jun-2023 16:27 109354 dmsp_16_ephemeris_20171128.txt 22-Jun-2023 16:27 109364 dmsp_17_ephemeris_20171128.txt 22-Jun-2023 16:27 109395 dmsp_18_ephemeris_20171128.txt 22-Jun-2023 16:27 109212