| Acronym | Meaning |
![](file.png) | MER | Mission Evaluation Room |
![](file.png) | FD | Fault Detection |
![](file.png) | ISS | Inertial Subsystem |
![](file.png) | DCS | Detail Checkout Specification(s) |
![](file.png) | GM | Geometric Mean |
![](file.png) | MCIU | Mission Control And Interface Unit |
![](file.png) | IPS | IRU Inertial Reference Unit |
![](file.png) | SIP | Scientific Instrument Package |
![](file.png) | MSBLS | Microwave Scan Beam Landing System |
![](file.png) | HIRAP | High-resolution Accelerometer Package |