| Acronym | Meaning |
 | DRSS | DATA Relay Satellite System |
| ERS | European Remote Sensing |
| ESOC | European Space Operations Centre |
| HDE | Henry Draper Extension |
| SARA | Satellite Pour Astronomie Radio Amateur |
| TAL | Transatlantic Abort Landing |
| MAS | Millimeter-wave Atmospheric Sounder |
| GOMR | Global Ozone Monitoring Radiometer |
| TWTA | Travelling Wave Tube Amplifier |
| DRAO | Dominion Radio Astrophysical Observatory |
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