../ dmsp_15_ephemeris_20250123.txt 23-Mar-2025 22:00 107817 dmsp_16_ephemeris_20250123.txt 23-Mar-2025 22:00 108000 dmsp_17_ephemeris_20250123.txt 23-Mar-2025 22:00 107922 dmsp_18_ephemeris_20250123.txt 23-Mar-2025 22:00 108012