| Acronym | Meaning |
![](file.png) | U-SB | Unified S-Band |
![](file.png) | CARR | Customer Acceptance Readiness Review |
![](file.png) | VT | STS Processing (KSC VO Dir.) |
![](file.png) | TCR | Thermal Concept Review |
![](file.png) | N2 | Nitrogen |
![](file.png) | REGEN | Regenerate |
![](file.png) | CDI | Course Deviation Indicator |
![](file.png) | SAB | Shuttle Avionics Breadboard |
![](file.png) | EOP | Experiments Of Opportunity |
![](file.png) | BARS | Baseline Accounting And Reporting System |