../ dmsp_15_ephemeris_20130321.txt 22-Jun-2023 16:34 108253 dmsp_16_ephemeris_20130321.txt 22-Jun-2023 16:34 108148 dmsp_17_ephemeris_20130321.txt 22-Jun-2023 16:34 108239 dmsp_18_ephemeris_20130321.txt 22-Jun-2023 16:34 108126