../ dmsp_15_ephemeris_20170319.txt 22-Jun-2023 16:25 108186 dmsp_16_ephemeris_20170319.txt 22-Jun-2023 16:25 108215 dmsp_17_ephemeris_20170319.txt 22-Jun-2023 16:25 108175 dmsp_18_ephemeris_20170319.txt 22-Jun-2023 16:25 108174