../ dmsp_15_ephemeris_20180523.txt 22-Jun-2023 16:52 109613 dmsp_16_ephemeris_20180523.txt 22-Jun-2023 16:52 109542 dmsp_17_ephemeris_20180523.txt 22-Jun-2023 16:52 109646 dmsp_18_ephemeris_20180523.txt 22-Jun-2023 16:52 109602