| Acronym | Meaning |
| RAU | Remote Acquisition Unit |
| MMS | Multimission Modular Spacecraft |
| SEC | Second |
| ML | Mold Line |
| MSC | Moding Sequencing And Control |
| MADS | Modular Auxiliary Data System |
| FDM | Frequency Division Multiplexing |
| PID | Program Introduction Document |
| MF | Major Function |
| EMEC | Electromagnetic Effects Capability |