../ dmsp_15_ephemeris_20170205.txt 22-Jun-2023 00:33 108098 dmsp_16_ephemeris_20170205.txt 22-Jun-2023 00:33 107959 dmsp_17_ephemeris_20170205.txt 22-Jun-2023 00:33 108063 dmsp_18_ephemeris_20170205.txt 22-Jun-2023 00:33 107931