Impact of Vehicle Flexibility on IRVE-II Flight Dynamics

IRVE-3 Post-Flight Reconstruction

“…Extensive upgrades and enhancements to the original STEP implementation enable its use on IRVE-II 6 as well as multiple other projects, among them, X-43A . Enhancements to the code have included the addition of the IEKF capability, new measurement models, new optional output variables, updated methods for mapping the internal state covariance into output uncertainties, as well as other more subtle improvements to the underlying numerical code.…”