../ dmsp_15_ephemeris_20110611.txt 22-Jun-2023 16:11 109568 dmsp_16_ephemeris_20110611.txt 22-Jun-2023 16:11 109696 dmsp_17_ephemeris_20110611.txt 22-Jun-2023 16:11 109583 dmsp_18_ephemeris_20110611.txt 22-Jun-2023 16:11 109653