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A new model to predict Ajisai satellite reflected sunlight flashes and application to the determination of its rotation parameters.

hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorCALATRONI, Carlo
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorMETRIS, Gilles
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorCOURDE, Clément
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorPHUNG, Duy-Hà
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorCHABÉ, Julien
hal.structure.identifierGéoazur [GEOAZUR 6526]
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorAIMAR, Mourad
hal.structure.identifierScalable, Optimized and Parallel Algorithms for Genomics [GenScale]
hal.structure.identifierPleiade, from patterns to models in computational biodiversity and biotechnology [PLEIADE]
dc.contributor.authorMAURICE, Nicolas
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorMARIEY, Hervé
dc.date.issued2025-02
dc.identifier.issn0273-1177
dc.description.abstractEnIn this paper, we propose a model reproducing the sequences of flashes emitted by the Ajisai satellite by reflection of the sunlight on the mirrors all around its surface and received by an observing station. A decisive novelty was added by introducing the curvature of the mirrors, that allows the reconstruction of the observed light curve given the attitude of the satellite. Measurements of the Ajisai’s light flux have been acquired using a high frequency (5/10 kHz) linear-detection optical photometry technique from the MéO telescope at Grasse station on the Plateau de Calern site of Observatoire de la Côte d’Azur. A procedure to extract individual flashes from the observed flux and identify the associated mirror on which the reflection occurred has been developed. The analysis of the observed flashes confirmed the validity of the model and allowed us to reconstruct the attitude of the satellite. The satellite rotation has been expressed as a function of the rotation spin axis, the rotation period and the rotation angle around the axis. A method to determine each parameter directly from single pass observations is proposed to fully constrain the satellite attitude using photometry. A precise knowledge of the attitude of the satellite is essential to enable future interesting developments, among others, improving the precision of the synchronization of distant clocks by means of laser links involving Ajisai.
dc.language.isoen
dc.publisherElsevier
dc.subject.enAjisai
dc.subject.enMirrors Flashes
dc.subject.enLinear Detection
dc.subject.enPhotometry
dc.subject.enSatellite Rotation
dc.title.enA new model to predict Ajisai satellite reflected sunlight flashes and application to the determination of its rotation parameters.
dc.typeArticle de revue
dc.identifier.doi10.1016/j.asr.2025.02.054
dc.subject.halPlanète et Univers [physics]/Autre
bordeaux.journalAdvances in Space Research
bordeaux.peerReviewedoui
hal.identifierhal-04980277
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04980277v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Advances%20in%20Space%20Research&rft.date=2025-02&rft.eissn=0273-1177&rft.issn=0273-1177&rft.au=CALATRONI,%20Carlo&METRIS,%20Gilles&COURDE,%20Cl%C3%A9ment&PHUNG,%20Duy-H%C3%A0&CHAB%C3%89,%20Julien&rft.genre=article


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