| Acronym | Meaning |
| ARCAS | All-purpose Rocket For The Collection Of Atmospheric Soundings |
| SIR | Spaceborne Imaging Radar |
| FPA | Focal Plane Assembly |
| HRS | High-resolution Data Service |
| FT | Identification For An Aviation Terminal Forecast |
| CDW | Critical Design Walk-through |
| SIPRI | Stockholm International Peace Research Institute |
| SD | Standard Deviation |
| GDP | Ground Data Processor |
| LDA | Local Data Acquisition |