../ dmsp_15_ephemeris_20220212.txt 22-Jun-2023 16:31 108139 dmsp_16_ephemeris_20220212.txt 22-Jun-2023 16:31 108060 dmsp_17_ephemeris_20220212.txt 22-Jun-2023 16:31 108173 dmsp_18_ephemeris_20220212.txt 22-Jun-2023 16:31 108111