| Acronym | Meaning |
| HRDI | High Resolution Doppler Imager |
| UIT | Ultraviolet Imaging Telescope |
| PM | Pressurized Module |
| PSR | PulSaR |
| FTS | Flight Telerobotic Servicer |
| CV | Cataclysmic Variable |
| ACTS | Advanced Communications Technology Satellite |
| ASCO | Arab Satellite Communications Organization |
| SNR | Signal To Noise Ratio / SuperNova Remnant |
| GGM | Goskogidromet/Gidromettsentr |