| Acronym | Meaning |
 | GPS | General Processing Subsystem |
| IPS | IPSL Interface Problem Status Log |
| SAR | Search And Rescue |
| MSS | Mechanical Support Systems |
| DAFT | Data Acquisition Frequency Table |
| FPC | Fluids Pressure Control |
| BT | Burn Time (Engine) |
| CSD | Chemical Systems Division |
| PIC | Programmable Interval Clock |
| REFRIG | Refrigerate |
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