| Acronym | Meaning |
| IGB | International Geophysical Bulletin |
| EMO | Elk Mountain Observatory |
| GDPS | Global Data Processing System |
| SR | Steradian |
| SOO/SAC | Science And Operations Officer/Scientific Applications Computer |
| OT | Optical Techniques Group |
| ENAC | Energetic Neutral Atom Camera |
| DCG | Derived Air Concentration Guide For Uncontrolled Areas |
| IR | Infrared |
| MOS | Model Output Statistics |