../ dmsp_15_ephemeris_20130516.txt 22-Jun-2023 16:35 109603 dmsp_16_ephemeris_20130516.txt 22-Jun-2023 16:35 109620 dmsp_17_ephemeris_20130516.txt 22-Jun-2023 16:35 109675 dmsp_18_ephemeris_20130516.txt 22-Jun-2023 16:35 109601