| Acronym | Meaning |
 | SPA | Steering Position Amplifier |
| OUT | Output |
| GACU | Ground Air Conditioning Unit |
| SRAG | Space Radiation Analysis Group |
| SOL | Squelch |
| ISI | Initial Systems Installation |
| GCV | Gaseous Oxygen Control Valve |
| SPIDPO | Shuttle Payload Integration And Development Progra |
| ISC | Johnson Space Center (formerly MSC) |
| FOB | Flight Operations Building |
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