| Acronym | Meaning |
 | SEOS | Synchronous Earth Observation Satellite |
| CMAT | Compatible Materials (List) |
| DM | DeveloPmental Instrumentation MDM.Mid |
| CST | Crew Systems Trainer (One-G Trainer) |
| PRSD | Power Reactant Storage And Distribution |
| VCC | Verification Code Counter |
| SC | Statement Of Compatibility |
| PATP | Preliminary Authority To Proceed |
| P/A | Problem Analysis |
| S&E | Science And Engineering (MSFC Directorate) |
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