| Acronym | Meaning |
 | O&C | Operations And Control |
| TPM | 1Terminal Phase Midcourse #1 |
| CRB | Change Review Board |
| RTCC | Real-Time Command Controller |
| MWG | MMWG Maintenance Analyzer Working Group |
| PM | PMAPerformance Monitor Annunciator |
| PSP | Payload Specialist Panel |
| EIA | Electrical Industries Association |
| ETM | ElaPsed Time Meter |
| UL | Upper Limit |
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