| Acronym | Meaning |
| RCC | Reinforced Carbon-Carbon |
| DAO | Dominion Astrophysical Observatory |
| PRTLS | Powered RTLS |
| GOES | Geostationary Orbiting Environmental Satellite |
| HGA | High Gain Antenna |
| GISS | Goddard Institute For Space Studies |
| MOMV | Manned Orbital Maneuvering Vehicle |
| ASP | Astronomical Society Of The Pacific |
| AOA | Angle Of Attack |
| CSA | Canadian Space Agency |