../ dmsp_15_ephemeris_20120303.txt 22-Jun-2023 00:19 108186 dmsp_16_ephemeris_20120303.txt 22-Jun-2023 00:19 108099 dmsp_17_ephemeris_20120303.txt 22-Jun-2023 00:19 108013 dmsp_18_ephemeris_20120303.txt 22-Jun-2023 00:19 108305