../ dmsp_15_ephemeris_20200713.txt 22-Jun-2023 00:44 109637 dmsp_16_ephemeris_20200713.txt 22-Jun-2023 00:44 109437 dmsp_17_ephemeris_20200713.txt 22-Jun-2023 00:44 109668 dmsp_18_ephemeris_20200713.txt 22-Jun-2023 00:44 109492