Latitude and Longitude Prepared will use Groundspeed where available, in preference to Airspeed True.
Errors in coreg when called with short data sets downgraded from Raise to Warning using logger. This arises sometimes in data cleansing, as filtering of unwanted conditions may leave very few useable sample points.
Merge branch 'master' of https://github.com/FlightDataServices/FlightDataAnalyzer