../ dmsp_15_ephemeris_20241016.txt 16-Dec-2024 22:00 109573 dmsp_16_ephemeris_20241016.txt 16-Dec-2024 22:00 109396 dmsp_17_ephemeris_20241016.txt 16-Dec-2024 22:00 109475 dmsp_18_ephemeris_20241016.txt 16-Dec-2024 22:00 109634