../ dmsp_15_ephemeris_20130620.txt 22-Jun-2023 00:22 109471 dmsp_16_ephemeris_20130620.txt 22-Jun-2023 00:22 109517 dmsp_17_ephemeris_20130620.txt 22-Jun-2023 00:22 109719 dmsp_18_ephemeris_20130620.txt 22-Jun-2023 00:22 109475