../ dmsp_15_ephemeris_20200211.txt 22-Jun-2023 00:43 108075 dmsp_16_ephemeris_20200211.txt 22-Jun-2023 00:43 108118 dmsp_17_ephemeris_20200211.txt 22-Jun-2023 00:43 108142 dmsp_18_ephemeris_20200211.txt 22-Jun-2023 00:43 108103