Orbiter Processing Facility (OPF)
is one of three hangars where space shuttle orbiter undergo
maintenance between flights.
When a shuttle mission is completed, the orbiter is parked in its
OPF. Its previous mission payload
are removed and the
vehicle is fully inspected, tested, and refurbished, including
re-tiling areas of the Thermal Protection
(TPS) where necessary. Then, part of the payloads for
its next mission are installed and checked out.
such facilities, OPF-1, OPF-2 and
OPF-3, are located at the Kennedy Space
Center in Florida.
OPF-1 and OPF-2 are connected together with a low bay in between
them, while OPF-3 is across the street. They are located west
of the Vehicle
Assembly Building, where the orbiter is mated with its External Tank and Solid Rocket Booster
Assignments to orbiters
OPF-1 is assigned to , OPF-2 to and OPF-3 to .