../ dmsp_15_ephemeris_20220311.txt 22-Jun-2023 16:31 108204 dmsp_16_ephemeris_20220311.txt 22-Jun-2023 16:31 108170 dmsp_17_ephemeris_20220311.txt 22-Jun-2023 16:31 108158 dmsp_18_ephemeris_20220311.txt 22-Jun-2023 16:31 108284