| Acronym | Meaning |
 | IPS | I RAN) |
| VIA | By Means Of (By Way Of) |
| ICH | Interchanger |
| SSR | Staff SuPport Room |
| OD | Operational Downlink/Downlist |
| SMSI | Standard Manned Space Flight Initiator |
| LS/ST | Light Shield/Star Tracker |
| SIR | Systems Integration Review |
| OV | Orbiter Vehicle |
| IFASC | Integrated Functions Assessment Steering Committ |
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