../ dmsp_15_ephemeris_20120310.txt 22-Jun-2023 16:31 108189 dmsp_16_ephemeris_20120310.txt 22-Jun-2023 16:31 108199 dmsp_17_ephemeris_20120310.txt 22-Jun-2023 16:31 108188 dmsp_18_ephemeris_20120310.txt 22-Jun-2023 16:31 108251