../ dmsp_15_ephemeris_20171114.txt 22-Jun-2023 00:35 109458 dmsp_16_ephemeris_20171114.txt 22-Jun-2023 00:35 109459 dmsp_17_ephemeris_20171114.txt 22-Jun-2023 00:35 109357 dmsp_18_ephemeris_20171114.txt 22-Jun-2023 00:35 109383