| Acronym | Meaning |
 | RA | Radar Altimeter |
 | OOD | OrbiterOn-Dock |
 | RHSC | Right Hand Side Console |
 | PIC | Pyro Initiator Capacitors |
 | MPI | Mission Payload Integration |
 | EXO | Experiment Operator (in Spacelab) |
 | MCL | Master Configuration List |
 | DDL | Data Downlink |
 | ECLSS | Environmental Control And Life Support System |
 | BAC | Boeing Aircraft Company |