../ dmsp_15_ephemeris_20120114.txt 22-Jun-2023 00:19 107955 dmsp_16_ephemeris_20120114.txt 22-Jun-2023 00:19 107914 dmsp_17_ephemeris_20120114.txt 22-Jun-2023 00:19 107909 dmsp_18_ephemeris_20120114.txt 22-Jun-2023 00:19 107956