../ dmsp_15_ephemeris_20190325.txt 22-Jun-2023 16:55 108091 dmsp_16_ephemeris_20190325.txt 22-Jun-2023 16:55 108107 dmsp_17_ephemeris_20190325.txt 22-Jun-2023 16:55 108226 dmsp_18_ephemeris_20190325.txt 22-Jun-2023 16:55 108260