../ dmsp_15_ephemeris_20150708.txt 22-Jun-2023 00:28 109451 dmsp_16_ephemeris_20150708.txt 22-Jun-2023 00:28 109460 dmsp_17_ephemeris_20150708.txt 22-Jun-2023 00:28 109506 dmsp_18_ephemeris_20150708.txt 22-Jun-2023 00:28 109572 dmsp_19_ephemeris_20150708.txt 22-Jun-2023 00:28 109615