../ dmsp_15_ephemeris_20110308.txt 22-Jun-2023 00:17 108325 dmsp_16_ephemeris_20110308.txt 22-Jun-2023 00:17 108122 dmsp_17_ephemeris_20110308.txt 22-Jun-2023 00:17 108253 dmsp_18_ephemeris_20110308.txt 22-Jun-2023 00:17 108126