../ dmsp_15_ephemeris_20170629.txt 22-Jun-2023 16:49 109425 dmsp_16_ephemeris_20170629.txt 22-Jun-2023 16:49 109513 dmsp_17_ephemeris_20170629.txt 22-Jun-2023 16:49 109745 dmsp_18_ephemeris_20170629.txt 22-Jun-2023 16:49 109439