rootbrowseIAC-19A6session 22. Modelling and Risk AnalysisPapers1. Numerical investigation on the standard catastrophic break-up criteria2. Fragments distribution prediction for ENVISAT catastrophic fragmentation3. A semi-analytical approach to low-thrust collision avoidance manoeuvre design4. Long-Term Environmental Effects of Deploying the OneWeb Satellite Constellation5. How an aware usage of the long-term dynamics can improve the long-term situation in the LEO region6. NewSpace and its implications for space debris models7. Impacts of Large Constellations and Mission Disposal Guidelines on the Future Space Debris Environment8. Variance-Covariance Significant Figure Reduction and Its Effect on Collision Probability Calculation9. What is the Cost of NOT Doing Debris Remediation NOW?10. evaluation of active debris removal strategy using a debris evolutionary model11. the optimal collision avoidance maneuver with multiple objects in GEO12. Long-term evolution and lifetime analyses of geostationary transfer orbits with solar radiation pressure. Improvements and updates in the new MASTER model. Transformation of satellite break-up distribution function using Gauss’ variational equations