| Acronym | Meaning |
| ESA | Engineering SuPPort Assembly |
| DC | DCAADefense Contract Audit Agency |
| LHA | Local Hour Angle |
| MRI | Measurement Requirements And Interface |
| PRR | Parts Replacement Request |
| LBM | Load Buffer Memory |
| ONBD | Onboard |
| FOSDIC | Film Optical Sensing Device For Input To Computers |
| QAVT | Qualification Acceptance Vibration Test |
| BUC | Backup Computer |