../ dmsp_15_ephemeris_20130224.txt 22-Jun-2023 00:21 108216 dmsp_16_ephemeris_20130224.txt 22-Jun-2023 00:21 108070 dmsp_17_ephemeris_20130224.txt 22-Jun-2023 00:21 108172 dmsp_18_ephemeris_20130224.txt 22-Jun-2023 00:21 108084