../ dmsp_15_ephemeris_20171005.txt 22-Jun-2023 00:35 109565 dmsp_16_ephemeris_20171005.txt 22-Jun-2023 00:35 109559 dmsp_17_ephemeris_20171005.txt 22-Jun-2023 00:35 109600 dmsp_18_ephemeris_20171005.txt 22-Jun-2023 00:35 109564