../ dmsp_15_ephemeris_20200910.txt 22-Jun-2023 00:45 109617 dmsp_16_ephemeris_20200910.txt 22-Jun-2023 00:45 109682 dmsp_17_ephemeris_20200910.txt 22-Jun-2023 00:45 109707 dmsp_18_ephemeris_20200910.txt 22-Jun-2023 00:45 109619