What type of information does "real-time data" provide in electronic navigation?

Real-time data in electronic navigation is crucial as it offers current information regarding the vessel's position and surrounding conditions. This includes data from GPS systems, radar, AIS (Automatic Identification System), and various sensors that monitor weather, tides, and navigational hazards. By providing up-to-the-minute updates, real-time data allows navigators to make informed decisions based on the vessel’s current environment. This live information is essential for safe navigation and timely responses to changing conditions, which can significantly impact the course and safety of the vessel.

The other types of information mentioned, such as static historical data, crew performance metrics, and maintenance schedules, do not provide immediate insights or situational awareness necessary for effective navigation in real time.