../ dmsp_15_ephemeris_20171222.txt 22-Jun-2023 16:51 109451 dmsp_16_ephemeris_20171222.txt 22-Jun-2023 16:51 109318 dmsp_17_ephemeris_20171222.txt 22-Jun-2023 16:51 109185 dmsp_18_ephemeris_20171222.txt 22-Jun-2023 16:51 109364