../ dmsp_15_ephemeris_20190204.txt 22-Jun-2023 16:55 108118 dmsp_16_ephemeris_20190204.txt 22-Jun-2023 16:55 108146 dmsp_17_ephemeris_20190204.txt 22-Jun-2023 16:55 107874 dmsp_18_ephemeris_20190204.txt 22-Jun-2023 16:55 107910