../ dmsp_15_ephemeris_20191210.txt 22-Jun-2023 16:32 109362 dmsp_16_ephemeris_20191210.txt 22-Jun-2023 16:32 109461 dmsp_17_ephemeris_20191210.txt 22-Jun-2023 16:32 109390 dmsp_18_ephemeris_20191210.txt 22-Jun-2023 16:32 109326