| Acronym | Meaning |
| VTPR | Vertical Temperature Profile Radiometer |
| SAMS | Stratospheric And Mesospheric Sounder |
| BPI | Budget |
| MADAM | Master Data Acquisition Module |
| ABE | Army Background Experiment |
| APEX | Acid Precipitation Experiment |
| ESA | European Space Agency |
| OTA | Office Of Technology Assessment |
| MILNET | Military Network |
| PDR | Preliminary Design Review |