diff -u -r1.1 -r1.2
--- TrackUtils.java	12 May 2012 22:20:44 -0000	1.1
+++ TrackUtils.java	29 May 2012 17:37:27 -0000	1.2
@@ -10,7 +10,7 @@

 /**
  * 
  * @author Omar Moreno <[log in to unmask]>

- * @version $Id: TrackUtils.java,v 1.1 2012/05/12 22:20:44 omoreno Exp $

+ * @version $Id: TrackUtils.java,v 1.2 2012/05/29 17:37:27 omoreno Exp $

  */
 
 public class TrackUtils {

@@ -116,10 +116,10 @@

 		
 		// Check if a track has been set
 		if(track == null) throw new RuntimeException("Track has not been set!");

-		
-		return this.getYC() 
-				+ Math.signum(this.getR())*Math.sqrt(this.getR()*this.getR() - Math.pow(x-this.getXC(), 2));
-		

+
+		// Find the y position
+		return  this.getYC()  
+					+ Math.signum(this.getR())*Math.sqrt(this.getR()*this.getR() - Math.pow(x-this.getXC(), 2));

 	}
 	
 	/**

@@ -167,8 +167,8 @@

 		trackParameters[4] = this.getDoca()*Math.cos(this.getPhi0());	// y0
 		trackParameters[5] = track.getTrackParameter(3);				// z0
 		trackParameters[6] = track.getTrackParameter(4);				// tan(Lambda)

-		trackParameters[7] = (this.getR() - this.getPhi0())*Math.sin(this.getPhi0());	// xc
-		trackParameters[8] = -(this.getR() - this.getPhi0())*Math.cos(this.getPhi0());	// yc

+		trackParameters[7] = (this.getR() - this.getDoca())*Math.sin(this.getPhi0());	// xc
+		trackParameters[8] = -(this.getR() - this.getDoca())*Math.cos(this.getPhi0());	// yc

 	}
 	
 	/**