| Acronym | Meaning |
| SMS | Separation Mechanism SubsYstem |
| SIR | Shuttle Imaging Radar |
| UV | Microvolt |
| PBIM | Programmable Buffer Interface Module |
| PF | PayloadFunction |
| MSFC | Marshall Space Flight Center |
| GSFC | Goddard Space Flight Center (Greenbelt |
| R&OA | Reliability And Quality Assurance |
| SPCC | STS Processing Control Center |
| CCS | Central Control Section |