| Acronym | Meaning |
| MF | Master Frame |
| SWAD | Subdivision Of Work Authorization Document |
| EGT | Elapsed GroundTime |
| MDM | Multiplexer/demultiplexer |
| PTP | Point-to-Point Phone(s) |
| TD | Time Delay |
| FC | Flight Critical |
| C&T | Communications And Tracking |
| DRD | Data Requirement Description |
| RTG | Radioisotope Thermoelectric Generator |