The Pathfinder was the Orbiter Weight Simulator before Enterprise.
Vehicle OV-098
Location: Space and Rocket Center in Huntsville, Alabama.
Space Shuttle Enterprise OV-101. First Orbiter never destined to fly in space. Used for the Approach and Landing Tests Flights (ALT Program) in 1977 carried by a Boeing 747, the Shuttle Carrier Aircraft (SCA).
Space Shuttle Enterprise at the Space Complex Six (SLC6) facility at Vandenberg Launch Site in California during Flight Vehicle Verification tests that would support the planned launch of Shuttle Discovery from Vandenberg during 1986.
STS-41D Discovery's Maiden Flight. Launched on Aug 30, 1984.
Payload: OAST-1, Satellites SBS-D, Telstar-3C and Syncom IV-2
STS-51L Challenger's last flight. Launched on Jan 28, 1986. Vehicle exploded, crew lost.
Payload: TDRS-B, Spartan-Halley
STS-26 Return to Flight. Space Shuttle Discovery launched on Sep 29, 1988.
Payload: TDRS-C/IUS