Space Software for the Satellite Based Augmentation System [SGAT]

SGAT is SBAS Geometry Analysis Tool, where SBAS stands for a Satellite Based Augmentation System. The application has been developed by our software company Touch4IT, financed by the European Space Agency (ESA) as part of PECS. SGAT is a key project that has provided us with a wealth of expertise, experience, and knowledge, enabling us to develop similar space or aerospace-related projects. 

We consider the greatest challenge in this project to be the need to adapt to the strict rules of the European Cooperation for Space Standardization (ECSS). As for limitations, numerous ideas for tool development emerged during the project. However, due to the predetermined budget, we had to limit them. 

SGAT is SBAS Geometry Analysis Tool, where SBAS stands for a Satellite Based Augmentation System. 

Key Features:  

• Definition of Satellite Constellations

• Definition of Ground Stations and User Location

• Definition of Ionospheric Grid Points

• Line of Sights Calculations

• DOC Contour Plot Generation

• Time Control

• Granularity: Time Rate Up to 1 Second

• Visualization Details Settings

• Splitscreen Comparison

• Ionosphere Geometry Analysis Calculations (IPP locations, IGP Performance Metrics)

• Graphs: Viewing Angles, Dilution of Precision Calculations (HDOP, VDOP, TDOP, GDOP, PDOP)

The advantages of using SGAT:

• User-oriented, research-based design system
• Merging multiple tools into one 
• Streamlined user experience
• Cuts down setup time from days to hours
• Our own implementation of industry-accepted algorithms
• Using fast computations, the app is able to create a 24-hour simulation in only 5 minutes

The most important phase was adapting to the software development process for the space industry and performing it under highly stringent reviews conducted by ESA professionals. Additionally, ensuring compliance with ECSS - European Cooperation for Space Standardization was considered. 

In the context of this tool, we have performed various integrations:

• RINEX files 

• SP3 files 

• TLE files 

• SINEX files 

• Almanac files 

We aimed to create a tool, gain experience, and establish a presence in the space industry. Despite challenges in meeting strict ECSS standards, SGAT not only overcame obstacles but also transformed several space industry processes. This tool includes features like defining satellites, ground stations, and ionospheric points, streamlining user experience, and reducing setup time. SGAT showcases our dedication to advancing space technology, giving us the expertise to develop more tools in the future.