../ dmsp_15_ephemeris_20131129.txt 22-Jun-2023 00:23 109316 dmsp_16_ephemeris_20131129.txt 22-Jun-2023 00:23 109368 dmsp_17_ephemeris_20131129.txt 22-Jun-2023 00:23 109220 dmsp_18_ephemeris_20131129.txt 22-Jun-2023 00:23 109282