../ dmsp_15_ephemeris_20190204.txt 22-Jun-2023 00:39 108118 dmsp_16_ephemeris_20190204.txt 22-Jun-2023 00:39 108146 dmsp_17_ephemeris_20190204.txt 22-Jun-2023 00:39 107874 dmsp_18_ephemeris_20190204.txt 22-Jun-2023 00:39 107910