../ dmsp_15_ephemeris_20130708.txt 22-Jun-2023 00:22 109433 dmsp_16_ephemeris_20130708.txt 22-Jun-2023 00:22 109549 dmsp_17_ephemeris_20130708.txt 22-Jun-2023 00:22 109598 dmsp_18_ephemeris_20130708.txt 22-Jun-2023 00:22 109672