| Acronym | Meaning |
| TIDI | TIMED Doppler Interferometer |
| PEM | Particle Environment Monitor |
| S&R | Search And Rescue |
| JEM | Joint Environmental Monitoring |
| POGO | Polar Orbiting Geophysical Observatory |
| GRA | Graduate Research Assistant |
| B | Bit |
| ASTM | American Society For Testing Materials |
| TSC | Technical Steering Committee |
| GC-AED | Gas Chromatography-Atomic Emission Detection |