rootbrowseIAC-17A6session 22. Modelling and Risk AnalysisPapers1. Preliminary Analysis of Two Years of the Massive Collision Monitoring Activity2. Mitigation Measures for Large Constellations3. Towards State Uncertainty Accuracy Requirements for Actionable GEO Collision Risk Assessments4. A Comprehensive Assessment of Collision Risk in Geosynchronous Earth Orbit5. Analysis of Initial Debris Fragment Characterization from DebriSat6. Evolution of Fragmentation Cloud in Highly Eccentric Orbit using Representative Objects7. Dynamical mapping of the LEO region for passive disposal design8. Drag and solar sail deorbiting: re-entry time versus cumulative collision probability9. Statistical comparison of ISO recommended thermosphere models and space weather proxy forecasting on re-entry predictions10. new aerothermodynamic models and atmospheric re-entry analysis for concave geometry elements of space debris11. Gas-Kinetic Unified Algorithm for Boltzmann Model Equation and Applications to Aerodynamics during Low-Orbit Flight and Falling Disintegration of TG-type Spacecraft