../ dmsp_15_ephemeris_20250216.txt 05-Apr-2025 00:00 108070 dmsp_16_ephemeris_20250216.txt 05-Apr-2025 00:00 108075 dmsp_17_ephemeris_20250216.txt 05-Apr-2025 00:00 107969 dmsp_18_ephemeris_20250216.txt 05-Apr-2025 00:00 108048