| Acronym | Meaning |
![](file.png) | M | ESAModular Equipment Stowage Assembly |
![](file.png) | DCS | Document Control System |
![](file.png) | OWF | OPtimum Working Frequency |
![](file.png) | H | AlH AlHours |
![](file.png) | HA | Apogee Altitude |
![](file.png) | MAAR | Monthly Associate Administrator's Review |
![](file.png) | SMCU | Separation Monitoring Control Unit |
![](file.png) | M+R | Maintenance And Refurbishment |
![](file.png) | LDB | Launch Data Bus |
![](file.png) | MRR | Mission Reconfiguration Request |