../ dmsp_15_ephemeris_20170210.txt 22-Jun-2023 00:33 107958 dmsp_16_ephemeris_20170210.txt 22-Jun-2023 00:33 108184 dmsp_17_ephemeris_20170210.txt 22-Jun-2023 00:33 107968 dmsp_18_ephemeris_20170210.txt 22-Jun-2023 00:33 107950