../ dmsp_15_ephemeris_20200806.txt 22-Jun-2023 00:44 109607 dmsp_16_ephemeris_20200806.txt 22-Jun-2023 00:44 109538 dmsp_17_ephemeris_20200806.txt 22-Jun-2023 00:44 109669 dmsp_18_ephemeris_20200806.txt 22-Jun-2023 00:44 109637