../ dmsp_15_ephemeris_20170126.txt 22-Jun-2023 00:33 108031 dmsp_16_ephemeris_20170126.txt 22-Jun-2023 00:33 108053 dmsp_17_ephemeris_20170126.txt 22-Jun-2023 00:33 108030 dmsp_18_ephemeris_20170126.txt 22-Jun-2023 00:33 107844