| Acronym | Meaning |
| KPNO | Kitt Peak National Observatory Arizona |
| MSIS | Mass Spectrometer And Incoherent Scatter |
| BSR | Budget Surplus Report |
| OBP | Onboard Processor |
| ADS | Ancillary Data Service |
| FILOS | Far Infrared Limb Observing Spectrometer |
| GCIP | GEWEX Continental-Scale International Project |
| DOPLID | Doppler Lidar |
| IEF | Inventory Exchange Format |
| MTEM | Magnetosphere-Thermosphere Explorer Mission |