../ dmsp_15_ephemeris_20220221.txt 22-Jun-2023 16:31 108024 dmsp_16_ephemeris_20220221.txt 22-Jun-2023 16:31 108173 dmsp_17_ephemeris_20220221.txt 22-Jun-2023 16:31 108100 dmsp_18_ephemeris_20220221.txt 22-Jun-2023 16:31 108078