| Acronym | Meaning |
 | TWTA | Travelling Wave Tube Amplifier |
| QSO | Quasi-Stellar Object |
| CFHT | Canada-France-Hawaii Telescope |
| CDDT | Countdown Demonstration Test |
| PCG | Protein Crystal Growth Experiment |
| RASC | Royal Astronomical Society Of Canada |
| AACS | Attitude And Articulation Control Subsystem |
| GOX | Gaseous OXygen |
| KTB | Cretaceous-Tertiary Boundary |
| IC | Index Catalog |
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