../ dmsp_15_ephemeris_20150221.txt 09-Nov-2025 23:14 108031 dmsp_16_ephemeris_20150221.txt 09-Nov-2025 23:14 108108 dmsp_17_ephemeris_20150221.txt 09-Nov-2025 23:14 108142 dmsp_18_ephemeris_20150221.txt 09-Nov-2025 23:14 108029 dmsp_19_ephemeris_20150221.txt 09-Nov-2025 23:14 108159