../ dmsp_15_ephemeris_20200402.txt 22-Jun-2023 00:43 108184 dmsp_16_ephemeris_20200402.txt 22-Jun-2023 00:43 108230 dmsp_17_ephemeris_20200402.txt 22-Jun-2023 00:43 108155 dmsp_18_ephemeris_20200402.txt 22-Jun-2023 00:43 108198