Below are the topics of the ICATT 2021 edition.

Dynamical systems theory applied to space flight problems.
This session addresses the analytical treatment of space-flight mechanics problems relevant to Guidance Navigation and Control systems, including spacecraft stability and control, spacecraft relative dynamics, orbit transfers, re-entry dynamics.

Multi-physics modelling and simulation of dynamical systems.
This session addresses the modelling and simulation of multiple physical models of dynamical systems and multiple simultaneous physical phenomena relevant for space flight problems, enveloping both launchers and spacecraft applications.

Trajectory modelling and simulation.
This session addresses tools and techniques for accurate modelling and simulation of trajectories in support to the development of Guidance Navigation and Control systems. Trajectories for expendable and reusable launchers (including stage separations, branching, abort trajectories, stage recovery), for atmospheric entry vehicles, for low-thrust orbital transfers, and for relative motion between objects in neighbouring orbits (including rendezvous and docking, formation-flying, in-orbit robotics operations) are typical applications. 

Atmospheric re-entry and aero-assisted manoeuvres guidance and control.
This session addresses techniques for atmospheric re-entry guidance and aero-assisted manoeuvres design under large uncertainties. Guidance optimality as well as analysis, propagation and compensation of uncertainties are addressed together with control techniques based on propulsive as well as aerodynamic actuation. 

Optimisation theory and multi-disciplinary optimisation.
This session addresses new mathematical methods and principles for local and global optimisation towards the development of mathematical solvers and tools for the concurrent optimisation of space vehicles and trajectories. Optimisation techniques for on-board real-time optimised guidance are also addressed.