../ dmsp_15_ephemeris_20190323.txt 22-Jun-2023 16:30 108209 dmsp_16_ephemeris_20190323.txt 22-Jun-2023 16:30 108129 dmsp_17_ephemeris_20190323.txt 22-Jun-2023 16:30 108230 dmsp_18_ephemeris_20190323.txt 22-Jun-2023 16:30 108154