diff --git a/s2e-ff/CMakeLists.txt b/s2e-ff/CMakeLists.txt
index f34412ae..30abad3a 100644
--- a/s2e-ff/CMakeLists.txt
+++ b/s2e-ff/CMakeLists.txt
@@ -50,7 +50,6 @@ set(SOURCE_FILES
   src/components/aocs/relative_position_sensor.cpp
   src/components/aocs/initialize_relative_position_sensor.cpp
   src/components/aocs/relative_attitude_sensor.cpp
-  src/components/aocs/initialize_relative_attitude_sensor.cpp
   src/components/aocs/relative_velocity_sensor.cpp
   src/components/aocs/initialize_relative_velocity_sensor.cpp
   src/components/aocs/laser_distance_meter.cpp
diff --git a/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.cpp b/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.cpp
deleted file mode 100644
index 4e5d8032..00000000
--- a/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/**
- * @file initialize_relative_attitude_sensor.cpp
- * @brief Initialize function for RelativeAttitudeSensor
- */
-
-#include "initialize_relative_attitude_sensor.hpp"
-
-#include <components/base/initialize_sensor.hpp>
-#include <library/initialize/initialize_file_access.hpp>
-
-RelativeAttitudeSensor InitializeRelativeAttitudeSensor(ClockGenerator* clock_gen, const std::string file_name, const double compo_step_time_s,
-                                                        const RelativeInformation& rel_info, const Dynamics& dynamics,
-                                                        const int reference_sat_id_input) {
-  // General
-  IniAccess ini_file(file_name);
-  char section[30] = "RELATIVE_ATTITUDE_SENSOR";
-
-  // CompoBase
-  int prescaler = ini_file.ReadInt(section, "prescaler");
-  if (prescaler <= 1) prescaler = 1;
-
-  // RelativeAttitudeSensor
-  int target_sat_id = ini_file.ReadInt(section, "target_sat_id");
-  int reference_sat_id = ini_file.ReadInt(section, "reference_sat_id");
-  if (reference_sat_id < 0) {
-    reference_sat_id = reference_sat_id_input;
-  }
-
-  // SensorBase
-  Sensor<3> sensor_base = ReadSensorInformation<3>(file_name, compo_step_time_s * (double)(prescaler), section, "rad");
-
-  RelativeAttitudeSensor relative_attitude_sensor(prescaler, clock_gen, sensor_base, target_sat_id, reference_sat_id, rel_info, dynamics);
-
-  return relative_attitude_sensor;
-}
diff --git a/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.hpp b/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.hpp
deleted file mode 100644
index 25cf7ee7..00000000
--- a/s2e-ff/src/components/aocs/initialize_relative_attitude_sensor.hpp
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * @file initialize_relative_attitude_sensor.hpp
- * @brief Initialize function for RelativeAttitudeSensor
- */
-
-#ifndef S2E_COMPONENTS_AOCS_INITIALIZE_RELATIVE_ATTITUDE_SENSOR_HPP_
-#define S2E_COMPONENTS_AOCS_INITIALIZE_RELATIVE_ATTITUDE_SENSOR_HPP_
-
-#include "relative_attitude_sensor.hpp"
-
-/**
- * @fn InitializeRelativeAttitudeSensor
- * @brief Initialize function
- */
-RelativeAttitudeSensor InitializeRelativeAttitudeSensor(ClockGenerator* clock_gen, const std::string file_name, const double compo_step_time_s,
-                                                        const RelativeInformation& rel_info, const Dynamics& dynamics,
-                                                        const int reference_sat_id_input = -1);
-
-#endif  // S2E_COMPONENTS_AOCS_INITIALIZE_RELATIVE_ATTITUDE_SENSOR_HPP_
diff --git a/s2e-ff/src/components/aocs/relative_attitude_sensor.cpp b/s2e-ff/src/components/aocs/relative_attitude_sensor.cpp
index 16d756a7..bc4a1723 100644
--- a/s2e-ff/src/components/aocs/relative_attitude_sensor.cpp
+++ b/s2e-ff/src/components/aocs/relative_attitude_sensor.cpp
@@ -5,6 +5,9 @@
 
 #include "relative_attitude_sensor.hpp"
 
+#include <components/base/initialize_sensor.hpp>
+#include <library/initialize/initialize_file_access.hpp>
+
 RelativeAttitudeSensor::RelativeAttitudeSensor(const int prescaler, ClockGenerator* clock_gen, Sensor& sensor_base, const int target_sat_id,
                                                const int reference_sat_id, const RelativeInformation& rel_info, const Dynamics& dynamics)
     : Component(prescaler, clock_gen),
@@ -45,3 +48,29 @@ std::string RelativeAttitudeSensor::GetLogValue() const {
 
   return str_tmp;
 }
+
+RelativeAttitudeSensor InitializeRelativeAttitudeSensor(ClockGenerator* clock_gen, const std::string file_name, const double compo_step_time_s,
+                                                        const RelativeInformation& rel_info, const Dynamics& dynamics,
+                                                        const int reference_sat_id_input) {
+  // General
+  IniAccess ini_file(file_name);
+  char section[30] = "RELATIVE_ATTITUDE_SENSOR";
+
+  // CompoBase
+  int prescaler = ini_file.ReadInt(section, "prescaler");
+  if (prescaler <= 1) prescaler = 1;
+
+  // RelativeAttitudeSensor
+  int target_sat_id = ini_file.ReadInt(section, "target_sat_id");
+  int reference_sat_id = ini_file.ReadInt(section, "reference_sat_id");
+  if (reference_sat_id < 0) {
+    reference_sat_id = reference_sat_id_input;
+  }
+
+  // SensorBase
+  Sensor<3> sensor_base = ReadSensorInformation<3>(file_name, compo_step_time_s * (double)(prescaler), section, "rad");
+
+  RelativeAttitudeSensor relative_attitude_sensor(prescaler, clock_gen, sensor_base, target_sat_id, reference_sat_id, rel_info, dynamics);
+
+  return relative_attitude_sensor;
+}
diff --git a/s2e-ff/src/components/aocs/relative_attitude_sensor.hpp b/s2e-ff/src/components/aocs/relative_attitude_sensor.hpp
index 8bd26bb0..5a2df3ea 100644
--- a/s2e-ff/src/components/aocs/relative_attitude_sensor.hpp
+++ b/s2e-ff/src/components/aocs/relative_attitude_sensor.hpp
@@ -68,4 +68,8 @@ class RelativeAttitudeSensor : public Component, public Sensor<3>, public ILogga
   const Dynamics& dynamics_;             //!< Dynamics
 };
 
+RelativeAttitudeSensor InitializeRelativeAttitudeSensor(ClockGenerator* clock_gen, const std::string file_name, const double compo_step_time_s,
+                                                        const RelativeInformation& rel_info, const Dynamics& dynamics,
+                                                        const int reference_sat_id_input = -1);
+
 #endif  // S2E_COMPONENTS_AOCS_RELATIVE_ATTITUDE_SENSOR_HPP_
diff --git a/s2e-ff/src/simulation/spacecraft/ff_components.hpp b/s2e-ff/src/simulation/spacecraft/ff_components.hpp
index 5b256493..5f463e33 100644
--- a/s2e-ff/src/simulation/spacecraft/ff_components.hpp
+++ b/s2e-ff/src/simulation/spacecraft/ff_components.hpp
@@ -16,11 +16,11 @@
 #include <components/ideal/force_generator.hpp>
 #include <components/real/cdh/on_board_computer.hpp>
 
-#include "../../components/aocs/initialize_relative_attitude_sensor.hpp"
 #include "../../components/aocs/initialize_relative_distance_sensor.hpp"
 #include "../../components/aocs/initialize_relative_position_sensor.hpp"
 #include "../../components/aocs/initialize_relative_velocity_sensor.hpp"
 #include "../../components/aocs/laser_distance_meter.hpp"
+#include "../../components/aocs/relative_attitude_sensor.hpp"
 #include "../../components/ideal/initialize_relative_attitude_controller.hpp"
 
 /**