| Orbiter Processing Facility | |
|---|---|
| Part of Launch Complex 39 | |
| United States | |
 Space Shuttle Columbia at the entrance of Orbiter Processing Facility 3 | |
| Coordinates | 28°35′09″N 80°39′18″W / 28.585803°N 80.654991°W |
| Type | Facility |
| Height | 29 m (95 ft) |
| Length | 121 m (397 ft) |
| Site information | |
| Operator | |
| Website | http://science.ksc.nasa.gov/facilities/opf.html |
Orbiter Processing Facility (OPF) is a class of hangars where U.S. Space Shuttle orbiters underwent maintenance between flights. They are located west of the Vehicle Assembly Building, where the orbiter was mated with its external tank and Solid Rocket Boosters before transport to the launch pad. OPF-1 and OPF-2 are connected with a low bay between them, while OPF-3 is across the street.
OPF-3 was previously called the Orbiter Maintenance & Refurbishment Facility (OMRF), but was upgraded[when?] to a fully functioning OPF.