| Acronym | Meaning |
 | IDENTIFICAT | Identification Data |
| ETA | Environmental Test Article |
| S/AC | Stabilization/Attitude Control |
| USI | Update Software Identity |
| PM | PMAPerformance Monitor Annunciator |
| Q | Pitch Rate (Angular Rate) |
| IGOR | Intercept Ground OPtical Recorder |
| DCSI | Data And Cqntrol Signal Interface |
| HPT | High Pressure Test |
| EDF | Engineering Data File |
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