| Acronym | Meaning |
| MTU | Master Timing Unit |
| LTG | Linear Tangent Guidance |
| MMS | Multimission Modular Spacecraft |
| MR | Master Reset |
| DP | Double Precision |
| SCDA | Safing |
| MAF | Manpower Authorization File |
| SEA | Silicon Elastimeter Ablator |
| PMS | Performance Measurement System |
| CVT | Communications Vector Table |