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: 8.6e+04 (+/- 1.4e+02 / 1.4e+02) Standard deviation: 3.1e+03 (+/- 1e+02 / 94) | Location: 7.5e+04 Scale: 2e+04 Beta A: 5 Beta B: 3.4 |
Gaussian Fit | Beta Fit |
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Mean: 8.2e+04 (+/- 1.6e+02 / 1.6e+02) Standard deviation: 3.7e+03 (+/- 1.2e+02 / 1.1e+02) | Location: 6.8e+04 Scale: 2.3e+04 Beta A: 4.9 Beta B: 2.6 |
ESA PADRE 2021