| Acronym | Meaning |
| TRI | Payload Furnished Mars Tape Recorder (1 Of 2) |
| PIPA | Pulse Integrating Pendulum Accelerometers |
| DCIM/DSCIM | Display SYstem Computer Input Multiplexer |
| MOSPO | Mobile Satellite Photometric Observatory |
| CCU | Central Control Unit |
| TAA | Technical Assistance Agreement |
| RPA | Record And Playback Assembly |
| EGA | Evolved Gas Analysis |
| PAYCOM | Payload Command |
| K | Kilo (1000) |