../ dmsp_15_ephemeris_20130716.txt 22-Jun-2023 00:22 109434 dmsp_16_ephemeris_20130716.txt 22-Jun-2023 00:22 109526 dmsp_17_ephemeris_20130716.txt 22-Jun-2023 00:22 109744 dmsp_18_ephemeris_20130716.txt 22-Jun-2023 00:22 109569