../ dmsp_15_ephemeris_20220115.txt 22-Jun-2023 00:49 107952 dmsp_16_ephemeris_20220115.txt 22-Jun-2023 00:49 108015 dmsp_17_ephemeris_20220115.txt 22-Jun-2023 00:49 107856 dmsp_18_ephemeris_20220115.txt 22-Jun-2023 00:49 107989