The map is auto-refreshed approximately once per minute. It’s generated by the application LiveMUF by Dave Edwards, G7RAU. This application is available to licenced radio amateurs to produce their own propagation maps.
Yellow arcs signify auroral reflection zones for the stations reporting auroral contacts.
White closely spaced arcs = “Iso Reflections”
White parallel lines crossing the map = day/night terminator
Yellow star = Sub-solar point
The data block in the bottom left corner includes the date and the start/end times for the 30 minute period of the current map in UTC.
View the Real-time Auroral Electrojet data from Kyoto, Japan: [link]