| Acronym | Meaning |
| MGE | Maintenance Ground Equipment |
| SOP | Subsystem Operating Program |
| CMD | Command |
| MAPOLE | Magnetic Dipole Spark Transmitter |
| EM | Emergency |
| PPM | Parts Per Million |
| SC | Signal Conditioner (S/C Preferred) |
| MDA | Motor Drive Amplifier |
| FT&C | Formal Training And Certification |
| ESRIN | European Space Research Institute |