../ dmsp_15_ephemeris_20110810.txt 22-Jun-2023 16:11 109648 dmsp_16_ephemeris_20110810.txt 22-Jun-2023 16:11 109756 dmsp_17_ephemeris_20110810.txt 22-Jun-2023 16:11 109730 dmsp_18_ephemeris_20110810.txt 22-Jun-2023 16:11 109633