../ dmsp_15_ephemeris_20171105.txt 22-Jun-2023 00:35 109476 dmsp_16_ephemeris_20171105.txt 22-Jun-2023 00:35 109562 dmsp_17_ephemeris_20171105.txt 22-Jun-2023 00:35 109433 dmsp_18_ephemeris_20171105.txt 22-Jun-2023 00:35 109475