../ dmsp_15_ephemeris_20130318.txt 22-Jun-2023 16:34 108153 dmsp_16_ephemeris_20130318.txt 22-Jun-2023 16:34 108154 dmsp_17_ephemeris_20130318.txt 22-Jun-2023 16:34 108167 dmsp_18_ephemeris_20130318.txt 22-Jun-2023 16:34 108191