../ dmsp_15_ephemeris_20110308.txt 22-Jun-2023 16:11 108325 dmsp_16_ephemeris_20110308.txt 22-Jun-2023 16:11 108122 dmsp_17_ephemeris_20110308.txt 22-Jun-2023 16:11 108253 dmsp_18_ephemeris_20110308.txt 22-Jun-2023 16:11 108126