../ dmsp_15_ephemeris_20151020.txt 09-Nov-2025 23:22 109596 dmsp_16_ephemeris_20151020.txt 09-Nov-2025 23:22 109620 dmsp_17_ephemeris_20151020.txt 09-Nov-2025 23:22 109663 dmsp_18_ephemeris_20151020.txt 09-Nov-2025 23:22 109457 dmsp_19_ephemeris_20151020.txt 09-Nov-2025 23:22 109599