| Acronym | Meaning |
| KB | Kilobit |
| GLS | Ground Launch Sequence (Sequencer) |
| FACO | Factory Acceptance Checkout |
| ETC | Greenbelt |
| VLV | Valve |
| HCL | Horizontal Centerline |
| DACS | Data Acquisition And Control System |
| COMR&DSAT | Communication Research And Development Satellite |
| CSAT | Combined Systems Acceptance Test |
| IDU | Interface Demonstration Unit |