| Acronym | Meaning |
 | FRD | Flight Requirements Document |
| STR | Structure |
| PTC | Portable Temperature Controller |
| CTA | Computer Technology Associates (GSFC) |
| E/C | Encoder/Coupler |
| JAS | Journal Of Aerospace Science |
| CM | Centimeter |
| DPT | Design Proof Test |
| PSI | Pounds Per Square Inch (Static Pressure) |
| NB | No-Bias (Relay) |
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