ekf2: lower fake position observation variance when at rest

src/modules/ekf2/EKF/fake_pos_control.cpp

@@ -108,7 +108,7 @@ void Ekf::fuseFakePosition()
 	} else if (!_control_status.flags.in_air && _control_status.flags.vehicle_at_rest) {
 		// Accelerate tilt fine alignment by fusing more
 		// aggressively when the vehicle is at rest
-		fake_pos_obs_var(0) = fake_pos_obs_var(1) = sq(0.1f);
+		fake_pos_obs_var(0) = fake_pos_obs_var(1) = sq(0.01f);
 
 	} else {
 		fake_pos_obs_var(0) = fake_pos_obs_var(1) = sq(0.5f);