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CEAS EuroGNC 2019

An autonomous GNC strategy for asteroid impactor missions
Giovanni Purpura Politecnico di Milano, Milano, Italy
Pierluigi Di Lizia Politecnico di Milano, Milano, Italy
Abstract:
The Solar System features thousands of Near-Earth Asteroids that could be at collision risk with our planet in the future. Scientists are investigating the possibility of deflecting asteroids from their trajectory by means of a hyper-velocity impactor spacecraft. The aim of this research is to develop and simulate a GNC strategy to control the spacecraft towards the asteroid. The navigation is based on the use of a camera to estimate the relative position through image analysis and a filtering process. A zero-effort error strategy is adopted for the control. A simulator has been developed to render the simulated images online and test the GNC algorithms. The simulator is used to assess the performance of the strategy on different scenarios and perform a sensitivity analysis.
Keywords: Spacecraft navigation
 View PDF CEAS-GNC-2019-058


Giovanni Purpura, Pierluigi Di Lizia: An autonomous GNC strategy for asteroid impactor missions. Proceedings of the 2019 CEAS EuroGNC conference. Milan, Italy. April 2019. CEAS-GNC-2019-058.
BibTeX entry:

@Incollection{CEAS-GNC-2019-058,
    authors = {Purpura, Giovanni and Di Lizia, Pierluigi},
    title = {An autonomous {GNC} strategy for asteroid impactor missions},
    booktitle = {Proceedings of the 2019 {CEAS EuroGNC} conference},
    address = {Milan, Italy},
    month = apr,
    year = {2019},
    note = {CEAS-GNC-2019-058}
}