| Acronym | Meaning |
 | ALPA | Airline Pilots Association |
| ESIS | ESA Space Information Systems |
| API | Absolute Position Indication |
| AIRS | Advanced Inertial Reference Sphere |
| SDBE | Shear-Directed Balloon Experiment |
| ANS | Autonomic Nervous System |
| AWRE | Atomic Weapon Research Establishment |
| MRS | Mesoscale Research Section |
| MAGE | Marine Aerosol And Gas Exchange Experiment |
| ATST | Advanced Technology Solar Telescope |
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