../ dmsp_15_ephemeris_20241106.txt 06-Jan-2025 22:00 109455 dmsp_16_ephemeris_20241106.txt 06-Jan-2025 22:00 109506 dmsp_17_ephemeris_20241106.txt 06-Jan-2025 22:00 109434 dmsp_18_ephemeris_20241106.txt 06-Jan-2025 22:00 109429