../ dmsp_15_ephemeris_20150221.txt 22-Jun-2023 16:15 108031 dmsp_16_ephemeris_20150221.txt 22-Jun-2023 16:15 108108 dmsp_17_ephemeris_20150221.txt 22-Jun-2023 16:15 108142 dmsp_18_ephemeris_20150221.txt 22-Jun-2023 16:15 108029 dmsp_19_ephemeris_20150221.txt 22-Jun-2023 16:15 108159