../ dmsp_15_ephemeris_20201223.txt 22-Jun-2023 00:45 109357 dmsp_16_ephemeris_20201223.txt 22-Jun-2023 00:45 109342 dmsp_17_ephemeris_20201223.txt 22-Jun-2023 00:45 109174 dmsp_18_ephemeris_20201223.txt 22-Jun-2023 00:45 109345