../ dmsp_15_ephemeris_20150823.txt 09-Nov-2025 15:45 109564 dmsp_16_ephemeris_20150823.txt 09-Nov-2025 15:45 109602 dmsp_17_ephemeris_20150823.txt 09-Nov-2025 15:45 109568 dmsp_18_ephemeris_20150823.txt 09-Nov-2025 15:45 109616 dmsp_19_ephemeris_20150823.txt 09-Nov-2025 15:45 109629