diff --git a/mission/controller/AcsController.cpp b/mission/controller/AcsController.cpp
index 08e8760d..02c0e094 100644
--- a/mission/controller/AcsController.cpp
+++ b/mission/controller/AcsController.cpp
@@ -22,7 +22,8 @@ AcsController::AcsController(object_id_t objectId, bool enableHkSets)
       mekfData(this),
       ctrlValData(this),
       actuatorCmdData(this),
-      fusedRotRateData(this) {}
+      fusedRotRateData(this),
+      tleData(this) {}
 
 ReturnValue_t AcsController::initialize() {
   ReturnValue_t result = parameterHelper.initialize();
@@ -62,6 +63,26 @@ ReturnValue_t AcsController::executeAction(ActionId_t actionId, MessageQueueId_t
       mekfLost = false;
       return HasActionsIF::EXECUTION_FINISHED;
     }
+    case UPDATE_TLE: {
+      if (size != 69 * 2) {
+        return INVALID_PARAMETERS;
+      }
+      ReturnValue_t result = navigation.updateTle(data, data + 69);
+      if (result != returnvalue::OK) {
+        PoolReadGuard pg(&tleData);
+        navigation.updateTle(tleData.line1.value, tleData.line2.value);
+        return result;
+      }
+      {
+        PoolReadGuard pg(&tleData);
+        if (pg.getReadResult() == returnvalue::OK) {
+          std::memcpy(tleData.line1.value, data, 69);
+          std::memcpy(tleData.line2.value, data + 69, 69);
+          tleData.setValidity(true, true);
+        }
+      }
+      return HasActionsIF::EXECUTION_FINISHED;
+    }
     default: {
       return HasActionsIF::INVALID_ACTION_ID;
     }
@@ -758,6 +779,9 @@ ReturnValue_t AcsController::initializeLocalDataPool(localpool::DataPool &localD
   localDataPoolMap.emplace(acsctrl::PoolIds::ROT_RATE_PARALLEL, &rotRateParallel);
   localDataPoolMap.emplace(acsctrl::PoolIds::ROT_RATE_TOTAL, &rotRateTotal);
   poolManager.subscribeForRegularPeriodicPacket({fusedRotRateData.getSid(), enableHkSets, 10.0});
+  // TLE Data
+  localDataPoolMap.emplace(acsctrl::PoolIds::TLE_LINE_1, &line1);
+  localDataPoolMap.emplace(acsctrl::PoolIds::TLE_LINE_2, &line2);
   return returnvalue::OK;
 }
 
diff --git a/mission/controller/AcsController.h b/mission/controller/AcsController.h
index a7dfbf6a..ef7817b9 100644
--- a/mission/controller/AcsController.h
+++ b/mission/controller/AcsController.h
@@ -84,6 +84,7 @@ class AcsController : public ExtendedControllerBase, public ReceivesParameterMes
   static const DeviceCommandId_t SOLAR_ARRAY_DEPLOYMENT_SUCCESSFUL = 0x0;
   static const DeviceCommandId_t RESET_MEKF = 0x1;
   static const DeviceCommandId_t RESTORE_MEKF_NONFINITE_RECOVERY = 0x2;
+  static const DeviceCommandId_t UPDATE_TLE = 0x3;
 
   static const uint8_t INTERFACE_ID = CLASS_ID::ACS_CTRL;
   //! [EXPORT] : [COMMENT] File deletion failed and at least one file is still existent.
@@ -234,6 +235,11 @@ class AcsController : public ExtendedControllerBase, public ReceivesParameterMes
   PoolEntry<double> rotRateParallel = PoolEntry<double>(3);
   PoolEntry<double> rotRateTotal = PoolEntry<double>(3);
 
+  // TLE Dataset
+  acsctrl::TleData tleData;
+  PoolEntry<uint8_t> line1 = PoolEntry<uint8_t>(69);
+  PoolEntry<uint8_t> line2 = PoolEntry<uint8_t>(69);
+
   // Initial delay to make sure all pool variables have been initialized their owners
   Countdown initialCountdown = Countdown(INIT_DELAY);
 };