../ dmsp_15_ephemeris_20220818.txt 22-Jun-2023 00:52 109613 dmsp_16_ephemeris_20220818.txt 22-Jun-2023 00:52 109656 dmsp_17_ephemeris_20220818.txt 22-Jun-2023 00:52 109534 dmsp_18_ephemeris_20220818.txt 22-Jun-2023 00:52 109509