internal LocationInformation(LatLong latlong, Double altitude, double direction, DateTime time)
{
_ll = latlong;
_altitude = altitude;
_direction = direction;
_time = time;
}
internal GroundSpeedInformation(LatLong latlong, double direction, DateTime time, double groundspeed)
{
_ll = latlong;
_groundspeed = groundspeed;
_direction = direction;
_time = time;
}