../ dmsp_15_ephemeris_20131124.txt 22-Jun-2023 00:23 109403 dmsp_16_ephemeris_20131124.txt 22-Jun-2023 00:23 109304 dmsp_17_ephemeris_20131124.txt 22-Jun-2023 00:23 109361 dmsp_18_ephemeris_20131124.txt 22-Jun-2023 00:23 109368