../ dmsp_15_ephemeris_20180213.txt 22-Jun-2023 16:27 108190 dmsp_16_ephemeris_20180213.txt 22-Jun-2023 16:27 108199 dmsp_17_ephemeris_20180213.txt 22-Jun-2023 16:27 108012 dmsp_18_ephemeris_20180213.txt 22-Jun-2023 16:27 108037