Description: Schematic representation of the signal propagation path from GNSS satellites to the receiver located on the lunar surface. The color scale represents the electron plasma density, modeled using the Global Core Plasma Model (GCPM).
The visualization accounts for the specific Sun-Earth geometry at the time of acquisition: the Earth's orientation and lighting are rendered based on the Sun's actual position to distinguish between dayside (Moon sunward of Earth) and nightside (Moon located within Earth's magnetosphere) lunar phases.