| Acronym | Meaning |
| SIR | Shuttle Imaging Radar |
| AAS | American Astronomical Society |
| LRSI | Low-temperature Reusable Surface Insulation |
| RNGC | Revised New General Catalog |
| FBV | Fuel Bleed Valve |
| DAO | Dominion Astrophysical Observatory |
| IMO | International Meteor Organization |
| REM | Rat Enclosure Module |
| EUMETSAT | European Meterological Satellite Organisation |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |