Demonstration of the PADRE spacecraft assessment mode. This analysis simulated the destructive re-entry of a 1000kg component-centric vehicle, modelled as a relatively simple structore comprising approximately 40 components. Re-entry is predicted from a circular sun-synchronous orbit of 130km altitude using the DRAMA v3.0.4 version of SESAM. Uncertainties in the initial true anomaly, atmosphere density, material properties, drag and heating coefficients are considered. A standard Monte-Carlo of between 2000 and 5000 simulations has been executed.
The following distributions include results for all components that demise, including those that demise as atomic components, part of a compound fragment
Gaussian Fit | Beta Fit |
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Mean: 1.3e+05 (+/- 2.1e+02 / 2.1e+02) Standard deviation: 4.8e+03 (+/- 1.5e+02 / 1.4e+02) | Location: 1.2e+05 Scale: 1.6e+04 Beta A: 0.31 Beta B: 0.73 |
Gaussian Fit | Beta Fit |
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Mean: 9.1e+04 (+/- 1.3e+02 / 1.3e+02) Standard deviation: 3e+03 (+/- 96 / 90) | Location: 7.8e+04 Scale: 4.4e+09 Beta A: 22 Beta B: 7.1e+06 |
ESA PADRE 2021