Anderson and Mastracchio, meanwhile, will test their spacesuits and the tools they plan to use during their upcoming spacewalks while Poindexter and Dutton carry out two rocket firings to fine-tune the shuttle's path to the space station. The crew patch for Discovery's flight deliveringscience and supplies to the space station isavailable in the Spaceflight Now Store. Approaching the lab complex from behind on flight day three, Poindexter will guide Discovery to a point about 600 feet directly below the station. Once in position, he will execute a 360-degree rendezvous pitch maneuver, or RPM, rotating the shuttle through a complete back flip to expose the ship's belly to the station crew.