../ dmsp_15_ephemeris_20171203.txt 22-Jun-2023 00:35 109447 dmsp_16_ephemeris_20171203.txt 22-Jun-2023 00:35 109333 dmsp_17_ephemeris_20171203.txt 22-Jun-2023 00:35 109226 dmsp_18_ephemeris_20171203.txt 22-Jun-2023 00:35 109228