| Acronym | Meaning |
| BNSC | British National Space Centre |
| PCGG | PCG Glovebox |
| TEA | Torque Equilibrium Attitude |
| ERS | European Remote Sensing |
| DMSP | Defense Meteorological Satellite Program |
| IMU | Inertial Measurement Unit |
| DIRBE | Diffuse Infrared Background Experiment |
| RSN | Radio SuperNova |
| SME | Solar Mesosphere Explorer |
| GRS | Great Red Spot |