../ dmsp_15_ephemeris_20241026.txt 26-Dec-2024 22:00 109524 dmsp_16_ephemeris_20241026.txt 26-Dec-2024 22:00 109569 dmsp_17_ephemeris_20241026.txt 26-Dec-2024 22:00 109495 dmsp_18_ephemeris_20241026.txt 26-Dec-2024 22:00 109526