The twentieth shuttle mission to the ISS, STS-116, will be led by the experienced commander Mark Polansky. Current plans call for a crew rotation and logistics mission utilizing the SPACEHAB Single Module. STS-116 continues assembly of the International Space Station. The primary mission objective is to deliver and install the P5 truss element. The P5 installation will be conducted during the first of the three planned spacewalks, and will involve use of both the shuttle and ISS robotic arms. The remainder of the mission will include a major reconfiguration and activation of the ISS electrical and thermal control systems, as well as delivery of Service Module Debris Panels, which will increase ISS protection from potential impacts of micro-meteorites and orbiter. The crew patch depicts the space shuttle rising above the Earth and ISS. The United States and Swedish flags trail the orbiter, depicting the international composition of the STS-116 crew. The seven stars of the constellation Ursa Major are used to provide direction to the North Star, which is superimposed over the installation location of the P5 truss on ISS.