ESA PADRE Analysis Results


Test case: Example DRAMA Uncontrolled Component-Centric Vehicle Re-entry

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.

Status

Configuration

Per Fragment 1D Casualty Risk

Gaussian FitBeta Fit
Mean: 12 (+/- 0.18 / 0.18)
Standard deviation: 10 (+/- 0.13 / 0.12)
Location: -3.4
Scale: 38
Beta A: 0.017
Beta B: 0.071

PDF/CDF data (download)
Centile data (download)

Per Fragment 1D Fatality Risk

Gaussian FitBeta Fit
Mean: 12 (+/- 0.19 / 0.19)
Standard deviation: 11 (+/- 0.13 / 0.13)
Location: -3.4
Scale: 38
Beta A: 0.11
Beta B: 0.43

PDF/CDF data (download)
Centile data (download)

Per Fragment Casualty Area

Gaussian FitBeta Fit
Mean: 0.99 (+/- 0.014 / 0.014)
Standard deviation: 0.79 (+/- 0.01 / 0.0099)
Location: 0.23
Scale: 2.5
Beta A: 0.0081
Beta B: 0.038

PDF/CDF data (download)
Centile data (download)

Per Fragment Fragment Area

Gaussian FitBeta Fit
Mean: 0.22 (+/- 0.0072 / 0.0072)
Standard deviation: 0.4 (+/- 0.0051 / 0.005)
Location: -0.1
Scale: 1.2
Beta A: 0.002
Beta B: 0.0085

PDF/CDF data (download)
Centile data (download)


ESA PADRE 2021