../ dmsp_15_ephemeris_20170925.txt 22-Jun-2023 00:35 109627 dmsp_16_ephemeris_20170925.txt 22-Jun-2023 00:35 109632 dmsp_17_ephemeris_20170925.txt 22-Jun-2023 00:35 109600 dmsp_18_ephemeris_20170925.txt 22-Jun-2023 00:35 109593