diff --git a/mission/controller/acs/SensorProcessing.cpp b/mission/controller/acs/SensorProcessing.cpp
index 61292c36..ac82e891 100644
--- a/mission/controller/acs/SensorProcessing.cpp
+++ b/mission/controller/acs/SensorProcessing.cpp
@@ -198,6 +198,7 @@ void SensorProcessing::processSus(
   sunIjkModel[0] = cos(eclipticLongitude);
   sunIjkModel[1] = sin(eclipticLongitude) * cos(epsilon);
   sunIjkModel[2] = sin(eclipticLongitude) * sin(epsilon);
+  VectorOperations<double>::normalize(sunIjkModel, sunIjkModel, 3);
 
   uint64_t susBrightness[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
   if (sus0valid) {