../ dmsp_15_ephemeris_20191010.txt 22-Jun-2023 16:31 109652 dmsp_16_ephemeris_20191010.txt 22-Jun-2023 16:31 109588 dmsp_17_ephemeris_20191010.txt 22-Jun-2023 16:31 109584 dmsp_18_ephemeris_20191010.txt 22-Jun-2023 16:31 109389