diff --git a/src/tutorials/java/RefiningPleiades/GroundRefining.java b/src/tutorials/java/RefiningPleiades/GroundRefining.java
index 132c39108ee48a38c24332e9bd2e2f1016237cf5..4a0bb5d57a90bf0043c9434ddb7bce514c6c7e92 100644
--- a/src/tutorials/java/RefiningPleiades/GroundRefining.java
+++ b/src/tutorials/java/RefiningPleiades/GroundRefining.java
@@ -37,7 +37,6 @@ import org.orekit.rugged.api.Rugged;
 import org.orekit.rugged.api.RuggedBuilder;
 import org.orekit.rugged.errors.RuggedException;
 import org.orekit.rugged.linesensor.LineSensor;
-import org.orekit.rugged.adjustment.measurements.Noise;
 import org.orekit.rugged.adjustment.measurements.SensorToGroundMapping;
 import org.orekit.time.AbsoluteDate;
 import org.orekit.utils.AngularDerivativesFilter;
@@ -47,6 +46,7 @@ import org.orekit.utils.TimeStampedAngularCoordinates;
 import org.orekit.utils.TimeStampedPVCoordinates;
 
 import RefiningPleiades.generators.GroundMeasurementGenerator;
+import RefiningPleiades.generators.Noise;
 import RefiningPleiades.metrics.DistanceTools;
 import RefiningPleiades.models.OrbitModel;
 import RefiningPleiades.models.PleiadesViewingModel;
diff --git a/src/tutorials/java/RefiningPleiades/InterRefining.java b/src/tutorials/java/RefiningPleiades/InterRefining.java
index a342d080b3b4291b3259a601877f47c9a7b0cdf2..14d85445076405784d68dbcd9e1002c84676ff8f 100644
--- a/src/tutorials/java/RefiningPleiades/InterRefining.java
+++ b/src/tutorials/java/RefiningPleiades/InterRefining.java
@@ -39,7 +39,6 @@ import org.orekit.rugged.api.Rugged;
 import org.orekit.rugged.api.RuggedBuilder;
 import org.orekit.rugged.errors.RuggedException;
 import org.orekit.rugged.linesensor.LineSensor;
-import org.orekit.rugged.adjustment.measurements.Noise;
 import org.orekit.rugged.adjustment.measurements.SensorToGroundMapping;
 import org.orekit.time.AbsoluteDate;
 import org.orekit.utils.AngularDerivativesFilter;
@@ -50,6 +49,7 @@ import org.orekit.utils.TimeStampedPVCoordinates;
 
 import RefiningPleiades.generators.GroundMeasurementGenerator;
 import RefiningPleiades.generators.InterMeasurementGenerator;
+import RefiningPleiades.generators.Noise;
 import RefiningPleiades.metrics.DistanceTools;
 import RefiningPleiades.models.OrbitModel;
 import RefiningPleiades.models.PleiadesViewingModel;
diff --git a/src/tutorials/java/RefiningPleiades/Refining.java b/src/tutorials/java/RefiningPleiades/Refining.java
index ee3c8fae4fbbd5501d99f5670444a8ded7a71fed..314be8b3560e04279f6b3f95a10de3ed4016223c 100644
--- a/src/tutorials/java/RefiningPleiades/Refining.java
+++ b/src/tutorials/java/RefiningPleiades/Refining.java
@@ -28,13 +28,13 @@ import org.orekit.rugged.adjustment.AdjustmentContext;
 import org.orekit.rugged.api.Rugged;
 import org.orekit.rugged.errors.RuggedException;
 import org.orekit.rugged.errors.RuggedMessages;
-import org.orekit.rugged.adjustment.measurements.Noise;
 import org.orekit.rugged.adjustment.measurements.Observables;
 import org.orekit.rugged.adjustment.measurements.SensorToGroundMapping;
 import org.orekit.rugged.adjustment.measurements.SensorToSensorMapping;
 
 import RefiningPleiades.generators.GroundMeasurementGenerator;
 import RefiningPleiades.generators.InterMeasurementGenerator;
+import RefiningPleiades.generators.Noise;
 import RefiningPleiades.metrics.LocalisationMetrics;
 
 /**
diff --git a/src/tutorials/java/RefiningPleiades/generators/GroundMeasurementGenerator.java b/src/tutorials/java/RefiningPleiades/generators/GroundMeasurementGenerator.java
index c7a7d95cfd6843d7a07cb8b91c580b112988a672..71176c319b646050d5e65122685db487a6218b1c 100644
--- a/src/tutorials/java/RefiningPleiades/generators/GroundMeasurementGenerator.java
+++ b/src/tutorials/java/RefiningPleiades/generators/GroundMeasurementGenerator.java
@@ -26,7 +26,6 @@ import org.orekit.rugged.api.Rugged;
 import org.orekit.rugged.errors.RuggedException;
 import org.orekit.rugged.linesensor.LineSensor;
 import org.orekit.rugged.linesensor.SensorPixel;
-import org.orekit.rugged.adjustment.measurements.Noise;
 import org.orekit.rugged.adjustment.measurements.Observables;
 import org.orekit.rugged.adjustment.measurements.SensorToGroundMapping;
 import org.orekit.time.AbsoluteDate;
diff --git a/src/tutorials/java/RefiningPleiades/generators/InterMeasurementGenerator.java b/src/tutorials/java/RefiningPleiades/generators/InterMeasurementGenerator.java
index 152f413fd92b4a6fd8d964612a93f24d8d8b04f5..589610c676f776d7791489258232bd2f097e823a 100644
--- a/src/tutorials/java/RefiningPleiades/generators/InterMeasurementGenerator.java
+++ b/src/tutorials/java/RefiningPleiades/generators/InterMeasurementGenerator.java
@@ -26,7 +26,6 @@ import org.orekit.rugged.errors.RuggedExceptionWrapper;
 import org.orekit.rugged.errors.RuggedMessages;
 import org.orekit.rugged.linesensor.LineSensor;
 import org.orekit.rugged.linesensor.SensorPixel;
-import org.orekit.rugged.adjustment.measurements.Noise;
 import org.orekit.rugged.adjustment.measurements.Observables;
 import org.orekit.rugged.adjustment.measurements.SensorToSensorMapping;
 import org.orekit.rugged.utils.SpacecraftToObservedBody;
diff --git a/src/tutorials/java/RefiningPleiades/generators/Measurable.java b/src/tutorials/java/RefiningPleiades/generators/Measurable.java
index 8f30c415a02bc35dd86530a59e97f4dc086e9fd3..cfcf213bef7a728b3772d7c56e2806782a96ee0b 100644
--- a/src/tutorials/java/RefiningPleiades/generators/Measurable.java
+++ b/src/tutorials/java/RefiningPleiades/generators/Measurable.java
@@ -17,7 +17,6 @@
 package RefiningPleiades.generators;
 
 import org.orekit.rugged.errors.RuggedException;
-import org.orekit.rugged.adjustment.measurements.Noise;
 
 /** For measurements generator.
  * @author Lucie Labat-Allee
diff --git a/src/main/java/org/orekit/rugged/adjustment/measurements/Noise.java b/src/tutorials/java/RefiningPleiades/generators/Noise.java
similarity index 98%
rename from src/main/java/org/orekit/rugged/adjustment/measurements/Noise.java
rename to src/tutorials/java/RefiningPleiades/generators/Noise.java
index 74a7bfbf8a36dd5a7e7d08f8fe1772117d1602d8..4ca4d0aecbdcae90fe1c7eacad25584389345c4b 100644
--- a/src/main/java/org/orekit/rugged/adjustment/measurements/Noise.java
+++ b/src/tutorials/java/RefiningPleiades/generators/Noise.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.orekit.rugged.adjustment.measurements;
+package RefiningPleiades.generators;
 
 
 /** Class for adding a noise to measurements.