../ dmsp_15_ephemeris_20120807.txt 22-Jun-2023 00:20 109710 dmsp_16_ephemeris_20120807.txt 22-Jun-2023 00:20 109707 dmsp_17_ephemeris_20120807.txt 22-Jun-2023 00:20 109687 dmsp_18_ephemeris_20120807.txt 22-Jun-2023 00:20 109590