../ dmsp_15_ephemeris_20220706.txt 22-Jun-2023 00:52 109582 dmsp_16_ephemeris_20220706.txt 22-Jun-2023 00:52 109567 dmsp_17_ephemeris_20220706.txt 22-Jun-2023 00:52 109605 dmsp_18_ephemeris_20220706.txt 22-Jun-2023 00:52 109497