../ dmsp_15_ephemeris_20110313.txt 22-Jun-2023 00:17 108223 dmsp_16_ephemeris_20110313.txt 22-Jun-2023 00:17 108235 dmsp_17_ephemeris_20110313.txt 22-Jun-2023 00:17 108142 dmsp_18_ephemeris_20110313.txt 22-Jun-2023 00:17 108230