| Acronym | Meaning |
| N204 | Nitrogen Tetroxide |
| HPG | High Pressure Gas |
| VCO | Voltage Controlled Oscillator (Oscillation) |
| FDF | Flight Data File |
| RK | Recharge |
| DCV | Direct Current Volts |
| MTA | Maintenance Task Analysis |
| CIC | Control And Information Center |
| SSPDB | Subsystem Power Distribution Box |
| PRSD | Power Reactant Storage And Distribution |