| Acronym | Meaning |
 | ISI | Instrumentation Support Instruction |
| VSI | Video Simulation Interface |
| WSGT | White Sands Ground Terminal |
| HGS | Hydrogen Gas Saver |
| PORT | Portable |
| SAR | Search And Rescue |
| GACU | Ground Air Conditioning Unit |
| STRFLD | Star Field |
| ECD | Estimated Completion Date |
| AMSU | Advanced Microwave Sounding Unit |
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