diff --git a/image_analysis/RotationParameters.cpp b/image_analysis/RotationParameters.cpp
index 5b259155..8fa5dbf3 100644
--- a/image_analysis/RotationParameters.cpp
+++ b/image_analysis/RotationParameters.cpp
@@ -3,8 +3,8 @@
 
 #include "RotationParameters.h"
 
-RotationParameters::RotationParameters()
-    : profile_radius(100), beam_x(100), beam_y(100), mosaicity(100) {}
+RotationParameters::RotationParameters(uint64_t moving_average_elems)
+    : profile_radius(moving_average_elems), beam_x(moving_average_elems), beam_y(moving_average_elems), mosaicity(moving_average_elems) {}
 
 float RotationParameters::ProfileRadius(float input) {
     profile_radius.Add(input);
diff --git a/image_analysis/RotationParameters.h b/image_analysis/RotationParameters.h
index 2c91e39b..1eab2ead 100644
--- a/image_analysis/RotationParameters.h
+++ b/image_analysis/RotationParameters.h
@@ -9,7 +9,7 @@
 class RotationParameters {
     MovingAverage profile_radius, beam_x, beam_y, mosaicity;
 public:
-    RotationParameters();
+    RotationParameters(uint64_t moving_average_elems = 20);
     float ProfileRadius(float input);
     float Mosaicity(float input);
     float BeamX(float input);