../ dmsp_15_ephemeris_20130207.txt 22-Jun-2023 00:21 108156 dmsp_16_ephemeris_20130207.txt 22-Jun-2023 00:21 108002 dmsp_17_ephemeris_20130207.txt 22-Jun-2023 00:21 108008 dmsp_18_ephemeris_20130207.txt 22-Jun-2023 00:21 107991