| Acronym | Meaning |
![](file.png) | ESS | Effective Sunset |
![](file.png) | TDRS | Tracking And Data Relay Satellite |
![](file.png) | RDD | Requirements Definition Document |
![](file.png) | OOMM | Organizational Operations And Maintenance Manual |
![](file.png) | POST | Payload Operations SuPport Team |
![](file.png) | HW | Ha Rd Wa Re |
![](file.png) | PFL | Primary Freon Loop |
![](file.png) | ORSDI | Oak Ridge Selective Dissemination Of Information |
![](file.png) | FBV | Fuel Bleed Valve |
![](file.png) | SCL | Specification Change Log |