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

Detailed Results for Component: TRUSS2, Data Set: No Risk

Overview

The following distributions include results for all components that demise, including those that demise as atomic components, part of a compound fragment

Release Altitude

Gaussian FitBeta Fit
Mean: 1.3e+05 (+/- 5.2e+02 / 5.2e+02)
Standard deviation: 4.9e+03 (+/- 4e+02 / 3.4e+02)
Location: 1.2e+05
Scale: 1.6e+04
Beta A: 0.25
Beta B: 0.54

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

No Risk Altitude

Gaussian FitBeta Fit
Mean: 7.5e+04 (+/- 2.2e+02 / 2.2e+02)
Standard deviation: 2.1e+03 (+/- 1.7e+02 / 1.5e+02)
Location: 6.3e+04
Scale: 1.8e+04
Beta A: 10
Beta B: 4.7

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


ESA PADRE 2021