Congratulations to Odyssey Engineers Denise Brown and James Pogemiller, whose article “Efficient, High-Fidelity Modeling and Simulation of Global Navigation Satellite System Constellations” was recently accepted for publication in the AIAA Journal of Aerospace Information Systems! The article, currently in Advance, was the result of several years of collaboration between multiple employees and can be found at the following link: Congratulations again to all involved in this effort to advance the state of the art in GPS constellation modeling!