Glossary
- SBAS:Satellite Based Augmentation System
- SCC:Satellite Control Centre
- SDM:System Definition Manual
- SESAR:Single European Sky ATM Research
- SL:Service Level or Station de Localisation
- SLA:Service Level Agreement (with network service provider)
- SLRD:System Level Requirements Document or SL Requirements Document
- SNAPAS:Satellite Navigation Performance Analysis Software
- SNT:Satellite Navigation Transponder
- SOC:Spacecraft Operation Centre
- SOLAS:Safety of Life At Sea
- SPS:Standard Positioning Service
- SL0:
Service Level 0
- SL1:
Service Level 1
- SDD:
Service Definition Document
- SoL:
Safety of Life
- SIS:
Signal-in-Space
- SSA:
Space Situational Awareness
- SST:
Space Surveillance and Tracking
- SUE:
SECRET UE/EU SECRET: the unauthorised disclosure of this information could seriously harm the essential interests of the EU or one or more of the Member States.
- SWE:
Space Weather Events
- SatCen:
European Union Satellite Centre
- SAR:
Search and Rescue
- SAR RLS:
Galileo Search and Rescue Return Link Service
- SGSC:
SAR/Galileo Service Centre