Speakers
Description
VLBI tracking and analysis of Earth-orbiting satellites is becoming increasingly important in geodesy and fundamental astronomy, as demonstrated by recent initiatives such as GENESIS. A central requirement for these applications is the accurate modelling of near-field effects, along with realistic treatment of station clocks and atmospheric delays.
To support these scientific goals, we have implemented in C5++ new capabilities for simulating and processing joint sessions of Earth-orbiting satellites and quasars. While some other distributions of C5++ already provide related functionality, our work offers a complementary implementation and serves as an independent check. The developments include four near-field VLBI models as well as error simulations for zenith wet delays and clock behaviour. We assess their performance by comparing the generated simulations with those from an alternative C5++ distribution, demonstrating consistent results and enabling future multi-technique geodetic applications.
