../ dmsp_15_ephemeris_20110307.txt 22-Jun-2023 00:17 108159 dmsp_16_ephemeris_20110307.txt 22-Jun-2023 00:17 108074 dmsp_17_ephemeris_20110307.txt 22-Jun-2023 00:17 108191 dmsp_18_ephemeris_20110307.txt 22-Jun-2023 00:17 108251