../ dmsp_15_ephemeris_20150131.txt 09-Nov-2025 23:14 108053 dmsp_16_ephemeris_20150131.txt 09-Nov-2025 23:14 108116 dmsp_17_ephemeris_20150131.txt 09-Nov-2025 23:14 107977 dmsp_18_ephemeris_20150131.txt 09-Nov-2025 23:14 107859 dmsp_19_ephemeris_20150131.txt 09-Nov-2025 23:14 107978