| Acronym | Meaning |
| QLS | Quick Look Station |
| COMR&DSAT | Communication Research And Development Satellite |
| FCC | Flight Crew Compartment |
| CMV | Common Mode Voltage |
| TPC | Telemetry Preprocessor Computer |
| DDPF | Dedicated Display Processing Function |
| ERTS | Earth Resources Technology Satellite |
| THC | Translation Hand Controller |
| LAIR | Liquid Air |
| PACS | Pointing And Attitude Control System |