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Map showing the track of the 200 km pierce point of the line of sight from core station CS002 to Cassiopeia A from 2013-08-18T21:05:00 UT to 2013-08-19T04:05:00 UT. The thicker orange part of the track enhances the first hour of the observation. The black line winding a path across the centre of the image is the location of the border between the Netherlands and Germany. The location of CS002 is marked with a black star.