../ dmsp_15_ephemeris_20220712.txt 22-Jun-2023 00:52 109562 dmsp_16_ephemeris_20220712.txt 22-Jun-2023 00:52 109606 dmsp_17_ephemeris_20220712.txt 22-Jun-2023 00:52 109653 dmsp_18_ephemeris_20220712.txt 22-Jun-2023 00:52 109531