../ dmsp_15_ephemeris_20180512.txt 22-Jun-2023 16:28 109451 dmsp_16_ephemeris_20180512.txt 22-Jun-2023 16:28 109575 dmsp_17_ephemeris_20180512.txt 22-Jun-2023 16:28 109668 dmsp_18_ephemeris_20180512.txt 22-Jun-2023 16:28 109598