QuSSat: Quantum Sensor Satellite-Based Simulator for Earth Observation and Inertial Navigation

Quantum sensors based on cold atoms make it possible to measure gravitational and inertial forces with unprecedented accuracy and precision. Their drift-free operation promises breakthroughs in satellite gravimetry and inertial navigation – without in-flight calibration. Making this technology operational will require long-term investment from key space stakeholders. However, this requires specific domain knowledge that is difficult to obtain. In addition, a lack of instrument standardisation and comprehensive design tools make it difficult to overcome deployment barriers due to the harsh environment in a spacecraft.

The QuSSat project is developing a simulator for space-based cold atom sensors. It will provide reliable performance estimates, including the integration of realistic platform noise, as well as unique numerical models to improve mission design and streamline the development process of space-based cold atom sensors by integrating industry-standard development software. This will help to properly assess the potential of using cold atom sensors in space, enabling more accurate satellite orbit predictions, the ability to navigate in space without GNSS, and dramatically improved models of the Earth’s climate.

Benefits:

• Provision of reliable performance estimates for space-based cold atom sensors
• Numerical models to improve mission design and streamline the engineering process for space-based cold atom sensors.
• QuSSat is working: The team supported the design of the new SM3B science module installed on the ISS.