../ dmsp_15_ephemeris_20190206.txt 22-Jun-2023 00:39 108150 dmsp_16_ephemeris_20190206.txt 22-Jun-2023 00:39 108081 dmsp_17_ephemeris_20190206.txt 22-Jun-2023 00:39 108069 dmsp_18_ephemeris_20190206.txt 22-Jun-2023 00:39 107982