../ dmsp_15_ephemeris_20161208.txt 22-Jun-2023 16:24 109438 dmsp_16_ephemeris_20161208.txt 22-Jun-2023 16:24 109381 dmsp_17_ephemeris_20161208.txt 22-Jun-2023 16:24 109295 dmsp_18_ephemeris_20161208.txt 22-Jun-2023 16:24 109187