../ dmsp_15_ephemeris_20150404.txt 22-Jun-2023 16:41 108183 dmsp_16_ephemeris_20150404.txt 22-Jun-2023 16:41 108215 dmsp_17_ephemeris_20150404.txt 22-Jun-2023 16:41 108330 dmsp_18_ephemeris_20150404.txt 22-Jun-2023 16:41 108388 dmsp_19_ephemeris_20150404.txt 22-Jun-2023 16:41 108312