| Acronym | Meaning |
 | CCRS | Canada Centre For Remote Sensing |
| PEM | Payload Electronics Module |
| MRSR | Mars Rover And Sample Return |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| FRC | Flight Research Center |
| OGO | Orbiting Geosurvey Observatories |
| MMPO | Mission Management And Planning Office |
| UT | Universal Time |
| OSS | Office Of The Space Station |
| AAVSO | American Association Of Variable Star Observers |
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