| Acronym | Meaning |
| LHA | Local Hour Angle |
| UOSAT | University Of Surrey Satellite |
| IOA | Institute Of Astronomy (Cambridge) |
| LEDA | On-line Earthnet Data Access |
| ISRO | Indian Space Research Organisation |
| MPESS | Multiple Purpose Experiment Support Structure |
| VRM | Venus Radar Mapper |
| MECO | Main Engine CutOff |
| DSO | Detailed Supplementary Objective |
| IOTA | Infrared-Optical Telescope Array |