Orbiter Processing Facility

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 / 28.585803; -80.654991
Type	Facility
Height	29 m (95 ft)
Length	121 m (397 ft)
Site information
Operator	NASA (1981–2012) Boeing (2014–present)
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.