../ dmsp_15_ephemeris_20190201.txt 22-Jun-2023 00:39 108142 dmsp_16_ephemeris_20190201.txt 22-Jun-2023 00:39 108032 dmsp_17_ephemeris_20190201.txt 22-Jun-2023 00:39 107916 dmsp_18_ephemeris_20190201.txt 22-Jun-2023 00:39 107935