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NaN values indicate a problem with the sensor data. Offhand, your IMU data is not filling out the orientation field of your IMU message (you have an invalid, all-zero quaternion). navsat_transform_node needs an earth-referenced heading, so it won't work if your IMU doesn't have a magnetometer.

NaN values indicate a problem with the sensor data. Offhand, your IMU data sensor is not filling out the orientation field of your IMU message (you have an invalid, all-zero quaternion). navsat_transform_node needs an earth-referenced heading, so it won't work if your IMU doesn't have a magnetometer.

NaN values indicate a problem with the sensor data. Offhand, your IMU sensor driver is not filling out the orientation field of your IMU message (you have an invalid, all-zero quaternion). navsat_transform_node needs an earth-referenced heading, so it won't work if your IMU doesn't have a magnetometer.