| Acronym | Meaning |
 | SLF | Shuttle Landing Facility |
| IBSS | Infrared Background Signature Survey |
| TAI | International Atomic Time |
| ATLAS | Atmospheric Laboratory For Applications And Science |
| PEM | Particle Environment Monitor |
| ATAL | Alternate Transoceanic Abort Landing |
| PPM | Positions And Proper Motions (catalog) |
| RSN | Radio SuperNova |
| ENSO | El Nino/Southern Oscillation |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
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