../ dmsp_15_ephemeris_20220318.txt 22-Jun-2023 16:31 108140 dmsp_16_ephemeris_20220318.txt 22-Jun-2023 16:31 108263 dmsp_17_ephemeris_20220318.txt 22-Jun-2023 16:31 108215 dmsp_18_ephemeris_20220318.txt 22-Jun-2023 16:31 108222