../ dmsp_15_ephemeris_20120625.txt 22-Jun-2023 16:13 109518 dmsp_16_ephemeris_20120625.txt 22-Jun-2023 16:13 109636 dmsp_17_ephemeris_20120625.txt 22-Jun-2023 16:13 109493 dmsp_18_ephemeris_20120625.txt 22-Jun-2023 16:13 109759