../ dmsp_15_ephemeris_20130723.txt 22-Jun-2023 00:22 109519 dmsp_16_ephemeris_20130723.txt 22-Jun-2023 00:22 109622 dmsp_17_ephemeris_20130723.txt 22-Jun-2023 00:22 109662 dmsp_18_ephemeris_20130723.txt 22-Jun-2023 00:22 109540