../ dmsp_15_ephemeris_20130907.txt 22-Jun-2023 16:15 109573 dmsp_16_ephemeris_20130907.txt 22-Jun-2023 16:15 109648 dmsp_17_ephemeris_20130907.txt 22-Jun-2023 16:15 109692 dmsp_18_ephemeris_20130907.txt 22-Jun-2023 16:15 109569