../ dmsp_15_ephemeris_20110927.txt 22-Jun-2023 00:18 109658 dmsp_16_ephemeris_20110927.txt 22-Jun-2023 00:18 109590 dmsp_17_ephemeris_20110927.txt 22-Jun-2023 00:18 109531 dmsp_18_ephemeris_20110927.txt 22-Jun-2023 00:18 109730