../ dmsp_15_ephemeris_20171006.txt 22-Jun-2023 00:35 109632 dmsp_16_ephemeris_20171006.txt 22-Jun-2023 00:35 109616 dmsp_17_ephemeris_20171006.txt 22-Jun-2023 00:35 109597 dmsp_18_ephemeris_20171006.txt 22-Jun-2023 00:35 109585