../ dmsp_15_ephemeris_20150831.txt 09-Nov-2025 23:16 109556 dmsp_16_ephemeris_20150831.txt 09-Nov-2025 23:16 109536 dmsp_17_ephemeris_20150831.txt 09-Nov-2025 23:16 109684 dmsp_18_ephemeris_20150831.txt 09-Nov-2025 23:16 109688 dmsp_19_ephemeris_20150831.txt 09-Nov-2025 23:16 109622