../ dmsp_15_ephemeris_20201112.txt 22-Jun-2023 00:45 109379 dmsp_16_ephemeris_20201112.txt 22-Jun-2023 00:45 109518 dmsp_17_ephemeris_20201112.txt 22-Jun-2023 00:45 109430 dmsp_18_ephemeris_20201112.txt 22-Jun-2023 00:45 109453