| Acronym | Meaning |
![](file.png) | CCM | Controlled Carrier Modulation |
![](file.png) | DAF | Data Acquisition Facility |
![](file.png) | UMO | Unmanned Orbital |
![](file.png) | TTE | Time To Event |
![](file.png) | SSPC | Spacelab Stored Program Command |
![](file.png) | CH | Channel |
![](file.png) | MOC | Mission Operations Computer |
![](file.png) | HITS | High Rate Multiplexer InPut/Output Test System |
![](file.png) | ESOC | European Space Operations Center |
![](file.png) | HAA | High Altitude Abort |