../ dmsp_15_ephemeris_20120225.txt 22-Jun-2023 00:19 108167 dmsp_16_ephemeris_20120225.txt 22-Jun-2023 00:19 108192 dmsp_17_ephemeris_20120225.txt 22-Jun-2023 00:19 108103 dmsp_18_ephemeris_20120225.txt 22-Jun-2023 00:19 108076