| Acronym | Meaning |
| MLS | Microwave Limb Sounder |
| AMP | Advanced Machining Program |
| JSPO | Joint Systems Program Office |
| IQSY/EX | International Quiet Years Of The Sun Experiments |
| ABC | Accelerator-based Conversion |
| GNU | GNU's Not UNIX (a Recursive Acronym) |
| INPE | Instituto De Pesquisas Espaciais |
| SSTS | Sea Surface Temperatures |
| RADM | Regional Acid Deposition Model |
| DTG | Data Time Group |