../ dmsp_15_ephemeris_20220220.txt 22-Jun-2023 16:31 108121 dmsp_16_ephemeris_20220220.txt 22-Jun-2023 16:31 108150 dmsp_17_ephemeris_20220220.txt 22-Jun-2023 16:31 108091 dmsp_18_ephemeris_20220220.txt 22-Jun-2023 16:31 108166