| Acronym | Meaning |
| CECP | Compatibility Engineering Change Proposal |
| MTB | Materials Testing 13ranch |
| ETR | Eastern Test Range |
| EVSU | Extravehicular Space Unit |
| OEM | Original Equipment Manufacturer |
| SCF | Statistical Collection File |
| SDF | System Development Facility (Breadboard) |
| TRI | Payload Furnished Mars Tape Recorder (1 Of 2) |
| ROC | Request Of Change |
| SBS | Satellite Business System |