rootbrowseIAC-04IAA.5.12session 11. Space Surveillance, Measurements and Modeling of Space Debris and MeteoroidsPapers1. Metric Accuracy and Limiting Visual Magnitude Analysis of the Canadian Zurveillance of Space Concept Demonstrator2. The High Earth Orbit Space Surveillance Mission3. Growth In The Number Of SSN Tracked Orbital Objects4. Modelling of the Optical Observations of a Geosynchronous Fragmentation Event5. Results from the GEO Debris Survey with MODEST6. Analysis of the Space Debris Environment with SDM 3.07. Upgrading the ESA-Master Model8. Additional Validation Results for the Small Particles Fraction in the ESA MASTER Space Debris Model9. A Consideration on Size and Area-to-Mass Distributions for Breakup Fragments10. Evolution and Expansion of the Orbital Debris Scenario based on Constant Gain Kalman Filter Approach