../ dmsp_15_ephemeris_20150408.txt 09-Nov-2025 23:14 108144 dmsp_16_ephemeris_20150408.txt 09-Nov-2025 23:14 108225 dmsp_17_ephemeris_20150408.txt 09-Nov-2025 23:14 108422 dmsp_18_ephemeris_20150408.txt 09-Nov-2025 23:14 108276 dmsp_19_ephemeris_20150408.txt 09-Nov-2025 23:14 108235