| Acronym | Meaning |
| FHST | Fixed Head Star Trackers |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| TES | Thermal Emission Spectrometer |
| ACRIM | ACR Irradiance Monitor |
| ENAP | Energetic Neutral Atom Precipitation |
| MOLA | Mars Observer Laser Altimeter |
| OSCAR | Orbiting Satellite Carrying Amateur Radio |
| CCRS | Canada Centre For Remote Sensing |
| SMS | Shuttle Mission Simulator |
| MFV | Main Fuel Valve |