../ dmsp_15_ephemeris_20220108.txt 22-Jun-2023 00:49 106569 dmsp_16_ephemeris_20220108.txt 22-Jun-2023 00:49 106458 dmsp_17_ephemeris_20220108.txt 22-Jun-2023 00:49 106271 dmsp_18_ephemeris_20220108.txt 22-Jun-2023 00:49 106511