../ dmsp_15_ephemeris_20220405.txt 22-Jun-2023 16:38 108142 dmsp_16_ephemeris_20220405.txt 22-Jun-2023 16:38 108210 dmsp_17_ephemeris_20220405.txt 22-Jun-2023 16:38 108141 dmsp_18_ephemeris_20220405.txt 22-Jun-2023 16:38 108233