../ dmsp_15_ephemeris_20130403.txt 22-Jun-2023 16:34 108267 dmsp_16_ephemeris_20130403.txt 22-Jun-2023 16:34 108188 dmsp_17_ephemeris_20130403.txt 22-Jun-2023 16:34 108284 dmsp_18_ephemeris_20130403.txt 22-Jun-2023 16:34 108174