The paper focuses on the opportunity to use star sensors to help space situational awareness and space surveillance. Catalogs of orbiting satellites around Earth are usually established on ground-based measurements that rely on optical or radar data provided by instruments on Earth. However, space-based observations offer new opportunities, as they are unrelated to the weather and the circadian rhythm to which the ground system is subjected. Consequently, space-based optical observation systems can provide data without atmospheric distortion from different observer-to-target distances, enhancing the possibility to detect and catalog resident space objects, i.e. satellites and space debris. This work deals with the feasibility study of an innovative strategy, which consists in the use of a star sensor with a dedicated algorithm to run directly on-board. This approach minimizes the impact on the platform so that, from a theoretical point of view, every satellite with a star sensor can be used as a space surveillance observer. The output of the algorithm consists of a database of pre-processed objects, which are then post-processed on ground. Numerical tests on synthetic images provided by a high-fidelity simulator demonstrate the applicability of the proposed approach. The study has been conducted within the framework of the Italian Space Agency project SPOT - Star sensor image Processing for orbiting Objects deTection.

On-orbit Recognition of Resident Space Objects by using Star Trackers / Spiller, D.; Magionami, E.; Schiattarella, V.; Curti, F.; Facchinetti, C.; Ansalone, L.; Tuozzi, A.. - In: ACTA ASTRONAUTICA. - ISSN 0094-5765. - 177:(2020), pp. 478-496. [10.1016/j.actaastro.2020.08.009]

On-orbit Recognition of Resident Space Objects by using Star Trackers

D. Spiller
Conceptualization
;
V. Schiattarella
Formal Analysis
;
F. Curti
Conceptualization
;
2020

Abstract

The paper focuses on the opportunity to use star sensors to help space situational awareness and space surveillance. Catalogs of orbiting satellites around Earth are usually established on ground-based measurements that rely on optical or radar data provided by instruments on Earth. However, space-based observations offer new opportunities, as they are unrelated to the weather and the circadian rhythm to which the ground system is subjected. Consequently, space-based optical observation systems can provide data without atmospheric distortion from different observer-to-target distances, enhancing the possibility to detect and catalog resident space objects, i.e. satellites and space debris. This work deals with the feasibility study of an innovative strategy, which consists in the use of a star sensor with a dedicated algorithm to run directly on-board. This approach minimizes the impact on the platform so that, from a theoretical point of view, every satellite with a star sensor can be used as a space surveillance observer. The output of the algorithm consists of a database of pre-processed objects, which are then post-processed on ground. Numerical tests on synthetic images provided by a high-fidelity simulator demonstrate the applicability of the proposed approach. The study has been conducted within the framework of the Italian Space Agency project SPOT - Star sensor image Processing for orbiting Objects deTection.
2020
aerospace engineering; space systems; space situational awareness; space surveillance; space debris; space-based optical observation; resident space objects’ detection; SPOT
01 Pubblicazione su rivista::01a Articolo in rivista
On-orbit Recognition of Resident Space Objects by using Star Trackers / Spiller, D.; Magionami, E.; Schiattarella, V.; Curti, F.; Facchinetti, C.; Ansalone, L.; Tuozzi, A.. - In: ACTA ASTRONAUTICA. - ISSN 0094-5765. - 177:(2020), pp. 478-496. [10.1016/j.actaastro.2020.08.009]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1501755
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