| Acronym | Meaning |
| ASRM | Advanced Solid Rocket Motor |
| BEM | Bug-Eyed Monster |
| WINDII | Wind Imaging Interferometer |
| FIRAS | Far InfraRed Absolute Spectrophotometer |
| TOS | Transfer Orbit Stage |
| TCM | Trajectory Control Maneuver |
| SETI | Search For ExtraTerrestrial Intelligence |
| MODIS-T | MODIS-Tilt |
| GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| ISO | Infrared Space Observatory |