| Acronym | Meaning |
 | MMS | Multimission Modular Spacecraft |
| PDR | Preliminary Data Requirements |
| SGMT | Simulated Greenwich Mean Time |
| RHC | Rotational Hand Controller |
| PFRT | Preliminary Flight Rating Test |
| CL | Closed Loop |
| PU | Power Unit |
| DOS | Disk Operating System |
| MEAS | Measuring |
| BP | Complete |
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