| Acronym | Meaning |
| ESOC | European Space Operations Center |
| POV | Pneumatic Operated Valve |
| HCMM | Heat Capacity Mapping Mission |
| MPCA | Mid Power Controller Assembly |
| PSS | Propellant Supply Subsystem |
| CBA | C-Band Transponder Antenna |
| SEM | Scanning Electron Microscope |
| PEIR | Project Equipment Inspection Record |
| SCU | Signal Conditioning Unit |
| PSIA | Pounds Per Square Inch Absolute |