diff --git a/src/main/java/org/orekit/rugged/api/LineDatation.java b/src/main/java/org/orekit/rugged/api/LineDatation.java
index 83963f0dbf8800202574fdb116a70f854380cfba..3686aabf7c26980ed25a81a09adafe007df79203 100644
--- a/src/main/java/org/orekit/rugged/api/LineDatation.java
+++ b/src/main/java/org/orekit/rugged/api/LineDatation.java
@@ -36,4 +36,10 @@ public interface LineDatation {
      */
     double getLine(AbsoluteDate date);
 
+    /** Get the rate of lines scanning.
+     * @param lineNumber line number
+     * @return rate of lines scanning (lines / seconds)
+     */
+    double getRate(double lineNumber);
+
 }
diff --git a/src/main/java/org/orekit/rugged/api/LineSensor.java b/src/main/java/org/orekit/rugged/api/LineSensor.java
index 907b7350c5270b5c3f5b252bbeb277b3a853f839..ee7e68f85ed728d57ad584f6e5a0a023cf61c074 100644
--- a/src/main/java/org/orekit/rugged/api/LineSensor.java
+++ b/src/main/java/org/orekit/rugged/api/LineSensor.java
@@ -214,6 +214,14 @@ public class LineSensor {
         return datationModel.getLine(date);
     }
 
+    /** Get the rate of lines scanning.
+     * @param lineNumber line number
+     * @return rate of lines scanning (lines / seconds)
+     */
+    public double getRate(final double lineNumber) {
+        return datationModel.getRate(lineNumber);
+    }
+
     /** Get the mean plane normal.
      * <p>
      * The normal is oriented such traversing pixels in increasing indices
diff --git a/src/main/java/org/orekit/rugged/api/LinearLineDatation.java b/src/main/java/org/orekit/rugged/api/LinearLineDatation.java
index 18f6c4491eaafdc146441940aa089bc54e9cb559..067a5858d9b29cc36c9c31d2254dd202f9db308a 100644
--- a/src/main/java/org/orekit/rugged/api/LinearLineDatation.java
+++ b/src/main/java/org/orekit/rugged/api/LinearLineDatation.java
@@ -60,4 +60,10 @@ public class LinearLineDatation implements LineDatation {
         return referenceLine + rate * date.durationFrom(referenceDate);
     }
 
+    /** {@inheritDoc} */
+    @Override
+    public double getRate(final double lineNumber) {
+        return rate;
+    }
+
 }