../ dmsp_15_ephemeris_20220321.txt 22-Jun-2023 16:38 108152 dmsp_16_ephemeris_20220321.txt 22-Jun-2023 16:38 108093 dmsp_17_ephemeris_20220321.txt 22-Jun-2023 16:38 108033 dmsp_18_ephemeris_20220321.txt 22-Jun-2023 16:38 108213