../ dmsp_15_ephemeris_20230113.txt 22-Jun-2023 00:54 107841 dmsp_16_ephemeris_20230113.txt 22-Jun-2023 00:54 107960 dmsp_17_ephemeris_20230113.txt 22-Jun-2023 00:54 107856 dmsp_18_ephemeris_20230113.txt 22-Jun-2023 00:54 107932