../ dmsp_15_ephemeris_20220406.txt 22-Jun-2023 16:31 108106 dmsp_16_ephemeris_20220406.txt 22-Jun-2023 16:31 108199 dmsp_17_ephemeris_20220406.txt 22-Jun-2023 16:31 108247 dmsp_18_ephemeris_20220406.txt 22-Jun-2023 16:31 108072