../ dmsp_15_ephemeris_20200225.txt 22-Jun-2023 00:43 108178 dmsp_16_ephemeris_20200225.txt 22-Jun-2023 00:43 108218 dmsp_17_ephemeris_20200225.txt 22-Jun-2023 00:43 108027 dmsp_18_ephemeris_20200225.txt 22-Jun-2023 00:43 108078