| Acronym | Meaning |
| GRTLS | Glide RTLS |
| OSC | Orbital Sciences Corporation |
| LGA | Low Gain Antenna |
| DMR | Differential Microwave Radiometer |
| DRAO | Dominion Radio Astrophysical Observatory |
| CADH | Communications And Data Handling |
| CMBR | Cosmic Microwave Background Radiation |
| ERS | European Remote Sensing |
| VLBA | Very Long Baseline Array |
| WMO | World Meterological Organisation |