../ dmsp_15_ephemeris_20241028.txt 28-Dec-2024 22:00 109605 dmsp_16_ephemeris_20241028.txt 28-Dec-2024 22:00 109515 dmsp_17_ephemeris_20241028.txt 28-Dec-2024 22:00 109265 dmsp_18_ephemeris_20241028.txt 28-Dec-2024 22:00 109403