../ dmsp_15_ephemeris_20110810.txt 22-Jun-2023 00:18 109648 dmsp_16_ephemeris_20110810.txt 22-Jun-2023 00:18 109756 dmsp_17_ephemeris_20110810.txt 22-Jun-2023 00:18 109730 dmsp_18_ephemeris_20110810.txt 22-Jun-2023 00:18 109633