../ dmsp_15_ephemeris_20190124.txt 22-Jun-2023 00:39 108087 dmsp_16_ephemeris_20190124.txt 22-Jun-2023 00:39 108019 dmsp_17_ephemeris_20190124.txt 22-Jun-2023 00:39 107933 dmsp_18_ephemeris_20190124.txt 22-Jun-2023 00:39 107908