../ dmsp_15_ephemeris_20201026.txt 22-Jun-2023 16:34 109596 dmsp_16_ephemeris_20201026.txt 22-Jun-2023 16:34 109634 dmsp_17_ephemeris_20201026.txt 22-Jun-2023 16:34 109475 dmsp_18_ephemeris_20201026.txt 22-Jun-2023 16:34 109538