../ dmsp_15_ephemeris_20130417.txt 22-Jun-2023 00:22 109591 dmsp_16_ephemeris_20130417.txt 22-Jun-2023 00:22 109662 dmsp_17_ephemeris_20130417.txt 22-Jun-2023 00:22 109855 dmsp_18_ephemeris_20130417.txt 22-Jun-2023 00:22 109658