Parameters

aircraftId

Type: SystemInt32

Return Value

Type: GlobalCoordinate
The first good position seen for the aircraft or null if no good position currently exists.

The sanity checker maintains a history of positions that have been received, up to the point where a call to CheckPosition(Int32, DateTime, Double, Double) returns a ProbablyRight result. Once a position is probably right you can call this method to get the earliest position seen that is probably correct when compared to the latest position. If the latest position is not ProbablyRight then this method returns null. Once two ProbablyRight positions are seen in succession the history will be wiped and the function will return null until the aircraft is removed from the history (which happens after roughly 10 minutes regardless of configuration settings).