| Acronym | Meaning |
| NTP | Network Time Protocol |
| CB | Meteorological Symbol |
| HIRRLS | High Resolution Research Limb Sounder |
| EMI | Electomagnetic Interference |
| EF | Error Function |
| SOPAC | Scripps Orbit And Permanent Array Center |
| AEM | Application Evaluation Matrix |
| ARG | Appointments Review Group |
| P/B | Priority Playback |
| SEDI | Structure Of The Earth's Deep Interior |