../ dmsp_15_ephemeris_20240524.txt 24-Jul-2024 22:00 109687 dmsp_16_ephemeris_20240524.txt 24-Jul-2024 22:00 109798 dmsp_17_ephemeris_20240524.txt 24-Jul-2024 22:00 109620 dmsp_18_ephemeris_20240524.txt 24-Jul-2024 22:00 109541