../ dmsp_15_ephemeris_20130813.txt 22-Jun-2023 00:22 109582 dmsp_16_ephemeris_20130813.txt 22-Jun-2023 00:22 109660 dmsp_17_ephemeris_20130813.txt 22-Jun-2023 00:22 109580 dmsp_18_ephemeris_20130813.txt 22-Jun-2023 00:22 109476