gazebo_msgs/ModelStates Message

string[] name
geometry_msgs/Pose[] pose
    geometry_msgs/Point position
        float64 x
        float64 y
        float64 z
    geometry_msgs/Quaternion orientation
        float64 x
        float64 y
        float64 z
        float64 w
geometry_msgs/Twist[] twist
    geometry_msgs/Vector3 linear
        float64 x
        float64 y
        float64 z
    geometry_msgs/Vector3 angular
        float64 x
        float64 y
        float64 z