../ dmsp_15_ephemeris_20241023.txt 23-Dec-2024 22:00 109663 dmsp_16_ephemeris_20241023.txt 23-Dec-2024 22:00 109546 dmsp_17_ephemeris_20241023.txt 23-Dec-2024 22:00 109579 dmsp_18_ephemeris_20241023.txt 23-Dec-2024 22:00 109670