FSOA
French Space Operation Act
This is the introduction page of the CNES flight dynamic tools developed in the frame of the French Space Operation Act (FSOA, LOS in french).
We can find:
- STELA, an orbital propagator based on a semi analytic integration method of the orbital parameters.
- ELECTRA, a tool allowing to compute the risk to do a victim for launch failure cases or spacecraft reentry.
- DEBRISK, a tool allowing to simulate atmospheric reentry of space debris taking into account aerothermodynamics effects.
Only STELA and DEBRISK are directly downloadable. For ELECTRA, a preliminary demand is needed.
Software products
STELA
Free owner licence
An orbital propagator based on a semi analytic integration method of the orbital parameters.
ELECTRA
Free owner licence
A tool to compute the risk to do a victim in case of launch failure cases or during a spacecraft reentry.
DEBRISK
Free owner licence
A tool to simulate atmospheric reentry of space debris taking into account aerothermodynamics effects.
The news FSOA
FSOA
26 May 2026
DEBRISK: New user guide for satellite applications
DEBRISK 3.7.1 now includes the new version of the User Guide for Satellite Applications (Ed. 1 Rev. 1), which aims to clarify the document (a few recommendations).
FSOA
13 April 2026
New version DEBRISK V3.7.1
A new version DEBRISK 3.7.1 is now available for download.