../ dmsp_15_ephemeris_20131207.txt 22-Jun-2023 00:23 109355 dmsp_16_ephemeris_20131207.txt 22-Jun-2023 00:23 109390 dmsp_17_ephemeris_20131207.txt 22-Jun-2023 00:23 109240 dmsp_18_ephemeris_20131207.txt 22-Jun-2023 00:23 109282