../ dmsp_15_ephemeris_20220110.txt 22-Jun-2023 00:49 107914 dmsp_16_ephemeris_20220110.txt 22-Jun-2023 00:49 107997 dmsp_17_ephemeris_20220110.txt 22-Jun-2023 00:49 107858 dmsp_18_ephemeris_20220110.txt 22-Jun-2023 00:49 107896