../ dmsp_15_ephemeris_20220323.txt 22-Jun-2023 16:31 108227 dmsp_16_ephemeris_20220323.txt 22-Jun-2023 16:31 108169 dmsp_17_ephemeris_20220323.txt 22-Jun-2023 16:31 108172 dmsp_18_ephemeris_20220323.txt 22-Jun-2023 16:31 108154