../ dmsp_15_ephemeris_20200311.txt 22-Jun-2023 00:43 108292 dmsp_16_ephemeris_20200311.txt 22-Jun-2023 00:43 108118 dmsp_17_ephemeris_20200311.txt 22-Jun-2023 00:43 108120 dmsp_18_ephemeris_20200311.txt 22-Jun-2023 00:43 108136