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Risk calculation in the case of uncontrolled re-entry réf:T2018SI105


The DSO/DV/ISL department (Engineering for Space surveillance and the French Space Operations Act) is responsible in particular for reference tools associated with the calculation of risks to populations during atmospheric re-entry. One of these tools, ELECTRA, allows calculation of the risk during random re-entry, controlled re-entry and also following a breakdown during a launch. In the first scenario (random re-entry), a specific method, which can be used a few days before re-entry, calculates the probable areas of impact as well as the associated risks. This method is quite complex and requires a configuration that can be quite tricky for a given orbit.

The aim of this course is to assess, as comprehensively as possible, the various adjustments to be taken into account according to the circumstances. For example:
- orbit propagation models,
- digital integrators and their associated settings,
- the number of Monte Carlo simulations, etc.
An important element of the course will also be the creation of a database of standard lists of fragments associated with satellite (or launcher) families.
In this context, course participants will work with the operational tool ELECTRA and will be in contact with the various departments of the CNES involved in this issue (flight dynamics, aero-thermodynamics, operational, etc.).

Desired profile

You should be a final year student at engineering school or university seeking an end-of-course internship and interested in topics related to space surveillance and debris. You should have previously studied astrodynamics. In addition, you should have a good knowledge of IT programming tools (in particular Java) and an interest in digital simulation. You should be independent, willing to take the initiative, enjoy working in a team and be familiar with Java and Scilab programming languages.

Structure description

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