../ dmsp_15_ephemeris_20171129.txt 22-Jun-2023 00:35 109451 dmsp_16_ephemeris_20171129.txt 22-Jun-2023 00:35 109322 dmsp_17_ephemeris_20171129.txt 22-Jun-2023 00:35 109281 dmsp_18_ephemeris_20171129.txt 22-Jun-2023 00:35 109339