Member ufo::HistoryCheckParameters::surfaceObservationSubtype: It is possible to use this to decide on the window length. Should the manual entry method be kept?
Member ufo::TrackCheckShip::TrackObservation::calculateTwoObservationValues (TrackObservation &prevObs, bool firstIteration, const TrackCheckShipParameters &options): Trace output will need to be changed to match that of OPS (indices, LWin)