diff --git a/CHANGELOG.md b/CHANGELOG.md
index b89cacbe..fe4c44f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,10 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+## Fixed
+
+- Faulty mapping of input values for QUEST algorithm.
+
 # [v7.5.0] 2023-12-06
 
 - `eive-tmtc` v5.12.0
diff --git a/mission/controller/acs/AttitudeEstimation.cpp b/mission/controller/acs/AttitudeEstimation.cpp
index e287b22f..5e07642f 100644
--- a/mission/controller/acs/AttitudeEstimation.cpp
+++ b/mission/controller/acs/AttitudeEstimation.cpp
@@ -24,10 +24,10 @@ void AttitudeEstimation::quest(acsctrl::SusDataProcessed *susData,
   // Normalize Data
   double normMgmB[3] = {0, 0, 0}, normMgmI[3] = {0, 0, 0}, normSusB[3] = {0, 0, 0},
          normSusI[3] = {0, 0, 0};
-  VectorOperations<double>::normalize(susData->susVecTot.value, normMgmB, 3);
-  VectorOperations<double>::normalize(susData->sunIjkModel.value, normMgmI, 3);
-  VectorOperations<double>::normalize(mgmData->mgmVecTot.value, normSusB, 3);
-  VectorOperations<double>::normalize(mgmData->magIgrfModel.value, normSusI, 3);
+  VectorOperations<double>::normalize(susData->susVecTot.value, normSusB, 3);
+  VectorOperations<double>::normalize(susData->sunIjkModel.value, normSusI, 3);
+  VectorOperations<double>::normalize(mgmData->mgmVecTot.value, normMgmB, 3);
+  VectorOperations<double>::normalize(mgmData->magIgrfModel.value, normMgmI, 3);
 
   // Create Helper Vectors
   double normHelperB[3] = {0, 0, 0}, normHelperI[3] = {0, 0, 0}, helperCross[3] = {0, 0, 0},