../ dmsp_15_ephemeris_20150221.txt 22-Jun-2023 00:27 108031 dmsp_16_ephemeris_20150221.txt 22-Jun-2023 00:27 108108 dmsp_17_ephemeris_20150221.txt 22-Jun-2023 00:27 108142 dmsp_18_ephemeris_20150221.txt 22-Jun-2023 00:27 108029 dmsp_19_ephemeris_20150221.txt 22-Jun-2023 00:27 108159