../ dmsp_15_ephemeris_20120118.txt 22-Jun-2023 00:19 107996 dmsp_16_ephemeris_20120118.txt 22-Jun-2023 00:19 107956 dmsp_17_ephemeris_20120118.txt 22-Jun-2023 00:19 107860 dmsp_18_ephemeris_20120118.txt 22-Jun-2023 00:19 108007