| XMM |
X-ray Multi Mirror Mission |
| OM |
Optical Monitor |
| HK |
Housekeeping |
| KAL |
Keep Alive |
| IFT |
Integrated Functional Test |
| ICU |
Instrument Control Unit |
| DPU |
Digital Processing Unit |
| HV |
High Voltage |
| LUT |
Lookup Table |
| tc |
Telecommand |
| tm |
Telemetry |
| MSSL |
Mullard Space Science Lab (University College London) |
| ESA |
European Space Agency |
| SOC |
Science Operations Centre |
| MCP |
Microchannel Plate(s) |
| FAQ |
Field Acquisition |
| s/c |
spacecraft |
| GS |
guide star(s) |
| RBI |
Remote Bus Interface |
| TMPSU |
Telescope module power supply unit |
| LOS |
Loss of Signal
|
