diff --git a/README.md b/README.md
index 5b5e05d..775b20c 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ This example is currently able to decode the following packets into ROS messages
 - ANPP 0: Acknowledge Packet
 - ANPP 3: Device Information Packet
 - ANPP 20: System State Packet
+- ANPP 26: Euler Orientation Standard Deviation Packet
 - ANPP 28: Raw Sensors Packet
 - ANPP 33: ECEF Position Packet  
 
@@ -455,4 +456,4 @@ And in the Drivers terminal
 ```
 NtripClient service done.
 [adnav_node]: RTCM Log file for this session can be found in: Log_<HOST:PORT>_<MOUNTPOINT>_<DATE>_<TIME>.rtcm
-```
\ No newline at end of file
+```
diff --git a/adnav_driver/include/adnav_driver/adnav_driver.h b/adnav_driver/include/adnav_driver/adnav_driver.h
index 9855254..89f60b4 100644
--- a/adnav_driver/include/adnav_driver/adnav_driver.h
+++ b/adnav_driver/include/adnav_driver/adnav_driver.h
@@ -133,7 +133,7 @@ class Driver : public rclcpp::Node  // Inheriting gives every "this->" as a poin
 
  private:
     // Debug variables
-    int pub_num_ = 0, P28_num_ = 0, P20_num_ = 0, P27_num_ = 0, P33_num_ = 0, P0_num_ = 0;
+    int pub_num_ = 0, P28_num_ = 0, P20_num_ = 0, P26_num_ = 0, P33_num_ = 0, P0_num_ = 0;
 
     // Defines what communication method to use, refer to adnav_driver_connection_e.
     int communication_state_;
@@ -297,7 +297,7 @@ class Driver : public rclcpp::Node  // Inheriting gives every "this->" as a poin
     void deviceInfoDecoder(an_packet_t* an_packet);
     void systemStateRosDecoder(an_packet_t* an_packet);
     void ecefPosRosDecoder(an_packet_t* an_packet);
-    void quartOrientSDRosDriver(an_packet_t* an_packet);
+    void eulerOrientSDRosDriver(an_packet_t* an_packet);
     void rawSensorsRosDecoder(an_packet_t* an_packet);
 };
 
diff --git a/adnav_driver/src/adnav_driver.cpp b/adnav_driver/src/adnav_driver.cpp
index 7833959..7bf4ae0 100644
--- a/adnav_driver/src/adnav_driver.cpp
+++ b/adnav_driver/src/adnav_driver.cpp
@@ -1473,7 +1473,7 @@ void Driver::decodePackets(an_decoder_t &an_decoder, const int &bytes) {
 			case packet_id_ecef_position: ecefPosRosDecoder(an_packet);
 				break;
 
-			case packet_id_quaternion_orientation_standard_deviation: quartOrientSDRosDriver(an_packet);
+			case packet_id_euler_orientation_standard_deviation: eulerOrientSDRosDriver(an_packet);
 				break;
 
 			case packet_id_raw_sensors: rawSensorsRosDecoder(an_packet);
@@ -1833,33 +1833,33 @@ void Driver::ecefPosRosDecoder(an_packet_t* an_packet) {
 }
 
 /**
- * @brief Function to decode the Quaternion Orientation Standard Deviation ANPP Packet (ANPP.27).
+ * @brief Function to decode the Euler Orientation Standard Deviation ANPP Packet (ANPP.26).
  *
  * This function accesses in a thread safe manner the class stored ROS messages, placed relevant information into them,
  * then using the publishing control variable, requests a publisher thread to publish the message.
  *
  * @param an_packet a pointer to an an_packet_t object which will be decoded.
  */
-void Driver::quartOrientSDRosDriver(an_packet_t* an_packet) {
-	quaternion_orientation_standard_deviation_packet_t quaternion_orientation_standard_deviation_packet;
+void Driver::eulerOrientSDRosDriver(an_packet_t* an_packet) {
+	euler_orientation_standard_deviation_packet_t euler_orientation_standard_deviation_packet;
 	std::unique_lock<std::mutex> lock(messages_mutex_);
-	RCLCPP_DEBUG(this->get_logger(), "Packet 27: \tMutex: L\tAccess: %d", P27_num_);
+	RCLCPP_DEBUG(this->get_logger(), "Packet 26: \tMutex: L\tAccess: %d", P26_num_);
 	// Debug timekeeper
 	auto time = this->get_clock().get()->now().nanoseconds();
 
-	if(decode_quaternion_orientation_standard_deviation_packet(&quaternion_orientation_standard_deviation_packet, an_packet) == 0)
+	if(decode_euler_orientation_standard_deviation_packet(&euler_orientation_standard_deviation_packet, an_packet) == 0)
 	 {
 		// IMU message
-		imu_msg_.orientation_covariance[0] = quaternion_orientation_standard_deviation_packet.standard_deviation[0];
-		imu_msg_.orientation_covariance[4] = quaternion_orientation_standard_deviation_packet.standard_deviation[1];
-		imu_msg_.orientation_covariance[8] = quaternion_orientation_standard_deviation_packet.standard_deviation[2];
+		imu_msg_.orientation_covariance[0] = pow(euler_orientation_standard_deviation_packet.standard_deviation[0], 2);
+		imu_msg_.orientation_covariance[4] = pow(euler_orientation_standard_deviation_packet.standard_deviation[1], 2);
+		imu_msg_.orientation_covariance[8] = pow(euler_orientation_standard_deviation_packet.standard_deviation[2], 2);
 	}
 	// Now that work is complete notify an update for the publisher.
 	msg_write_done_ = true;
 	msg_cv_.notify_one();
 	// RCLCPP_DEBUG(this->get_logger(), "Raw: \tNotifying Complete\t%d", raw_num_++);
 	auto diff = this->get_clock().get()->now().nanoseconds() - time;
-	RCLCPP_DEBUG(this->get_logger(), "Packet 27:\tMutex: U\tAccess: %d\tTimeLocked: %ld μs", P27_num_++, diff/1000);
+	RCLCPP_DEBUG(this->get_logger(), "Packet 26:\tMutex: U\tAccess: %d\tTimeLocked: %ld μs", P26_num_++, diff/1000);
 }
 
 /**