../ dmsp_15_ephemeris_20120226.txt 22-Jun-2023 00:19 108127 dmsp_16_ephemeris_20120226.txt 22-Jun-2023 00:19 108027 dmsp_17_ephemeris_20120226.txt 22-Jun-2023 00:19 108119 dmsp_18_ephemeris_20120226.txt 22-Jun-2023 00:19 108144