PA5-A61 is the Tau'ri designation for a planet in the Milky Way galaxy which Linea discovered in Stargate Command's computers whilst she was reviewing worlds to escape to from Earth. It is unknown if the Tau'ri had visited the world, as they simply got the address from the Abydos cartouche, but it is likely that Linea memorized the address for future use. (SG1: "Prisoners")