../ dmsp_15_ephemeris_20200826.txt 22-Jun-2023 00:44 109654 dmsp_16_ephemeris_20200826.txt 22-Jun-2023 00:44 109719 dmsp_17_ephemeris_20200826.txt 22-Jun-2023 00:44 109919 dmsp_18_ephemeris_20200826.txt 22-Jun-2023 00:44 109546