LMAP

Currently, the determination of the ionospheric delay of LEO (Low Earth Orbit) is outdated. The development of the most commonly used mapping function dates back to the 1990s. With the current high number of LEO satellites, the topside sounding of the ionosphere has increased dramatically. A more precise mapping function is needed in order to accurately determine the LEO receiver instrumental biases and the topside ionosphere. This is essential for combining space data with high-precision GNSS ground data.

The main objective of the project is to develop high-precision ionospheric mapping algorithms to combine GNSS ground and space data to produce accurate ionospheric maps useful for navigation.

Participation in the ESA call 'LEO Ionospheric Mapping Assessment and Derivation for Precise PVT Applications' under EXPRO+ conditions.

The main task is to develop suitable ionospheric mapping algorithms to combine GNSS data from space and ground.


DLR-SO will lead this project. In addition, the following institutions are involved:

• Universität of Warmia and Mazury in Olsztyn (UWM)
Michala Oczapowskiego 2, Olsztyn, Polen

• DLR Gesellschaft für Raumfahrtanwendungen mbH (DLR-GfR)
Muenchener Straße 20, 82234 Wessling, Deutschland