../ dmsp_15_ephemeris_20161230.txt 22-Jun-2023 00:33 109508 dmsp_16_ephemeris_20161230.txt 22-Jun-2023 00:33 109318 dmsp_17_ephemeris_20161230.txt 22-Jun-2023 00:33 109193 dmsp_18_ephemeris_20161230.txt 22-Jun-2023 00:33 109286