../ dmsp_15_ephemeris_20130827.txt 22-Jun-2023 16:35 109648 dmsp_16_ephemeris_20130827.txt 22-Jun-2023 16:35 109603 dmsp_17_ephemeris_20130827.txt 22-Jun-2023 16:35 109659 dmsp_18_ephemeris_20130827.txt 22-Jun-2023 16:35 109691