| Acronym | Meaning |
 | PVR | Precision Voltage Reference |
 | NMR | Nuclear Magnetic Resonance |
 | GPD | Gimbal Position Display |
 | CSC | Cosecant COMPuting Amplifier |
 | SDA | Shaft Drive Axis |
 | EHP | Electrical Horsepower |
 | DC | DCAADefense Contract Audit Agency |
 | POPA | PaYload Ordnance Processing Area |
 | S | TRKStar Tracker |
 | RV | Recirculation Valve |