| Acronym | Meaning |
| AGU | American Geophysical Union |
| MMT | Multiple Mirror Telescope |
| TAL | Transatlantic Abort Landing |
| PDS | Planetary Data System |
| ARC | Ames Research Center (NASA) |
| DSN | Deep Space Network |
| SSCE | Solid Surface Combustion Experiment |
| SAREX | Search And Rescue Exercise / Shuttle Amateur Radio Experiment |
| USO | Ultra-Stable Oscillator |
| SEP | Societe Europeenne De Propulsion |