| Acronym | Meaning |
| CSA | Canadian Space Agency |
| BNSC | British National Space Centre |
| OSSA | Office Of Space Science And Applications |
| GPS | Global Positioning System |
| NOAO | National Optical Astronomy Observatories |
| PMT | PhotoMultiplier Tube |
| HTVL | Horizontal Takeoff Vertical Landing |
| OCTW | Optical Communications Through The Shuttle Window |
| PAM-D | Payload Assist Module |
| VVS | Voenno-Vosdushniye Sili |