| Acronym | Meaning |
| ATMOS | Atmospheric Trace Molecule Spectroscopy |
| MSU | Microwave Sounding Unit |
| IVT | Interface Verification Test |
| MRO | Memory Read-Out |
| SNU | Solar Neutrino Units |
| GMS | Geostationary Meterological Satellite |
| AAO | Anglo-Australian Observatory |
| RTLS | Return To Launch Site |
| ATDRS | Advanced Tracking And Data Relay Satellite |
| VTVL | Vertical Takeoff Vertical Landing |