../ dmsp_15_ephemeris_20140317.txt 22-Jun-2023 00:24 108238 dmsp_16_ephemeris_20140317.txt 22-Jun-2023 00:24 108115 dmsp_17_ephemeris_20140317.txt 22-Jun-2023 00:24 108141 dmsp_18_ephemeris_20140317.txt 22-Jun-2023 00:24 108256