| Acronym | Meaning |
| IPS | IRIG-BInterrange Instrumentation Group B |
| MAIDS | Management Automated Information Display System |
| NOSL | Night/Day Optical Survey Of Thunderstorm Lightning |
| PLUM | Payload Umbilical Mast |
| MRL | Manipulator Retention Lock |
| RSC | Range Safety Control/Command |
| BC | Bus Coupler |
| PBI | Push Button Indicator |
| PAC | Probe Aerodynamic Center |
| RPO | Radiation Protection Officer |