| Acronym | Meaning |
 | SEI | Space Exploration Initiative |
| SEST | Swedish ESO Submillimeter Telescope |
| PDE | Particle Dispersion Experiment |
| HLC | Heavy Lift Capability |
| RESTEC | Remote Sensing Technology Center |
| TAL | Transatlantic Abort Landing |
| GST | Greenwich Sidereal Time |
| TSS | Targeted Search System / Tethered Satellite System |
| NSSDC | National Space Science Data Center |
| USMP | United States Microgravity Payload |
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