P3A-707 was a planet suggested by Daniel Jackson as a potential escape route when SG-1 was imprisoned on Hadante. He thought the planet might work: "but there was no way of telling..."
Dr. Jackson was interrupted, so it is unclear what his issue may have been with P3A-707. He ultimately pronounced P2A-509 as the ideal location for them to dial.
--Aurora 08:59, 3 May 2006 (PDT)