../ dmsp_15_ephemeris_20190214.txt 22-Jun-2023 00:39 108221 dmsp_16_ephemeris_20190214.txt 22-Jun-2023 00:39 108113 dmsp_17_ephemeris_20190214.txt 22-Jun-2023 00:39 108105 dmsp_18_ephemeris_20190214.txt 22-Jun-2023 00:39 108070