../ dmsp_15_ephemeris_20110131.txt 22-Jun-2023 16:10 108067 dmsp_16_ephemeris_20110131.txt 22-Jun-2023 16:10 108076 dmsp_17_ephemeris_20110131.txt 22-Jun-2023 16:10 107982 dmsp_18_ephemeris_20110131.txt 22-Jun-2023 16:10 108088