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Title:
The CoRoT satellite in flight: description and performance
Authors:
Auvergne, M.; Bodin, P.; Boisnard, L.; Buey, J.-T.; Chaintreuil, S.; Epstein, G.; Jouret, M.; Lam-Trong, T.; Levacher, P.; Magnan, A.; Perez, R.; Plasson, P.; Plesseria, J.; Peter, G.; Steller, M.; Tiphène, D.; Baglin, A.; Agogué, P.; Appourchaux, T.; Barbet, D.; Beaufort, T.; Bellenger, R.; Berlin, R.; Bernardi, P.; Blouin, D.; Boumier, P.; Bonneau, F.; Briet, R.; Butler, B.; Cautain, R.; Chiavassa, F.; Costes, V.; Cuvilho, J.; Cunha-Parro, V.; de Oliveira Fialho, F.; Decaudin, M.; Defise, J.-M.; Djalal, S.; Docclo, A.; Drummond, R.; Dupuis, O.; Exil, G.; Fauré, C.; Gaboriaud, A.; Gamet, P.; Gavalda, P.; Grolleau, E.; Gueguen, L.; Guivarc'h, V.; Guterman, P.; Hasiba, J.; Huntzinger, G.; Hustaix, H.; Imbert, C.; Jeanville, G.; Johlander, B.; Jorda, L.; Journoud, P.; Karioty, F.; Kerjean, L.; Lafond, L.; Lapeyrere, V.; Landiech, P.; Larqué, T.; Laudet, P.; Le Merrer, J.; Leporati, L.; Leruyet, B.; Levieuge, B.; Llebaria, A.; Martin, L.; Mazy, E.; Mesnager, J.-M.; Michel, J.-P.; Moalic, J.-P.; Monjoin, W.; Naudet, D.; Neukirchner, S.; Nguyen-Kim, K.; Ollivier, M.; Orcesi, J.-L.; Ottacher, H.; Oulali, A.; Parisot, J.; Perruchot, S.; Piacentino, A.; Pinheiro da Silva, L.; Platzer, J.; Pontet, B.; Pradines, A.; Quentin, C.; Rohbeck, U.; Rolland, G.; Rollenhagen, F.; Romagnan, R.; Russ, N.; Samadi, R.; Schmidt, R.; Schwartz, N.; Sebbag, I.; Smit, H.; Sunter, W.; Tello, M.; Toulouse, P.; Ulmer, B.; Vandermarcq, O.; Vergnault, E.; Wallner, R.; Waultier, G.; Zanatta, P.
Affiliation:
AA(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AB(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AC(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AD(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AE(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AF(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AG(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AH(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AI(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), AJ(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), AK(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AL(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AM(Centre Spatial de Liége, ULG Science Park, Av. du Pré-Aly 4031 Angleur-Liége, Belgium), AN(Institute of Planetary Research, DLR, Rutherfordstr. 2, 12489 Berlin, Germany), AO(Space Research Institute, Austrian Academy of Science, Schmiedlstrasse 6, 8042 Graz, Austria), AP(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AQ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AR(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), AS(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), AT(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), AU(European Space Agency, ESTEC, SCI-A, PO Box 299, 2200AG, Noordwijk, The Netherlands), AV(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AW(Institute of Planetary Research, DLR, Rutherfordstr. 2, 12489 Berlin, Germany), AX(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), AY(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), AZ(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), BA(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BB(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BC(European Space Agency, ESTEC, SCI-A, PO Box 299, 2200AG, Noordwijk, The Netherlands), BD(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), BE(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BF(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BG(Observatoire Midi-Pyrénées, 14 Av. E. Belin, Toulouse, France), BH(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BI(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BJ(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), BK(Centre Spatial de Liége, ULG Science Park, Av. du Pré-Aly 4031 Angleur-Liége, Belgium), BL(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BM(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BN(Instituut voor Sterrenkunde, Departement Natuurkunde en Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, Office 03.31, 3001 Leuven, Belgium), BO(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BP(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BQ(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BR(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BS(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BT(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), BU(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BV(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BW(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), BX(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), BY(Space Research Institute, Austrian Academy of Science, Schmiedlstrasse 6, 8042 Graz, Austria), BZ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CA(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CB(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CC(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CD(European Space Agency, ESTEC, SCI-A, PO Box 299, 2200AG, Noordwijk, The Netherlands), CE(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), CF(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CG(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CH(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CI(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CJ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CK(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CL(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CM(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CN(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), CO(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), CP(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CQ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CR(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), CS(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), CT(Centre Spatial de Liége, ULG Science Park, Av. du Pré-Aly 4031 Angleur-Liége, Belgium), CU(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), CV(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CW(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), CX(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CY(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), CZ(Space Research Institute, Austrian Academy of Science, Schmiedlstrasse 6, 8042 Graz, Austria), DA(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), DB(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), DC(Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France), DD(Space Research Institute, Austrian Academy of Science, Schmiedlstrasse 6, 8042 Graz, Austria), DE(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DF(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DG(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), DH(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DI(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DJ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DK(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), DL(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), DM(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), DN(CLIPhIT, Arnfriedstrasse 17, 12683 Berlin, Germany), DO(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), DP(Institute of Planetary Research, DLR, Rutherfordstr. 2, 12489 Berlin, Germany), DQ(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DR(Institute of Planetary Research, DLR, Rutherfordstr. 2, 12489 Berlin, Germany), DS(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DT(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DU(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France), DV(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), DW(European Space Agency, ESTEC, SCI-A, PO Box 299, 2200AG, Noordwijk, The Netherlands), DX(European Space Agency, ESTEC, SCI-A, PO Box 299, 2200AG, Noordwijk, The Netherlands), DY(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), DZ(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), EA(Technologiepark 1, 15236 Frankfurt/Oder, Germany), EB(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), EC(Centre National d'Études Spatiales, 18 avenue E. Belin, Toulouse, France), ED(Space Research Institute, Austrian Academy of Science, Schmiedlstrasse 6, 8042 Graz, Austria), EE(Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13376 Marseille Cedex 12, France), EF(Observatoire de Paris, UMR 8109, 5 place J. Janssen, 92195 Meudon, France)
Publication:
Astronomy and Astrophysics, Volume 506, Issue 1, 2009, pp.411-424 (A&A Homepage)
Publication Date:
10/2009
Origin:
EDP Sciences
Keywords:
instrumentation: photometers, stars: planetary systems, stars: oscillations
DOI:
10.1051/0004-6361/200810860
Bibliographic Code:
2009A&A...506..411A

Abstract

Context: CoRoT is a space telescope dedicated to stellar seismology and the search for extrasolar planets. The mission is led by the CNES in association with French laboratories and has a large international participation. The European Space Agency (ESA), Austria, Belgium, and Germany contribute to the payload, and Spain and Brazil contribute to the ground segment. Development of the spacecraft, which is based on a PROTEUS low earth orbit (LEO) recurrent platform, commenced in October 2000, and the satellite was launched on December 27, 2006.
Aims: The instrument and platform characteristics prior to launch have been described in ESA publication (SP-1306). In the present paper we explain the behaviour in flight, based on raw and corrected data.
Methods: Five runs have been completed since January 2007. The data used here are essentially those acquired during the commissioning phase and from a long run that lasted 146 days. These enable us to give a complete overview of the instrument and platform behaviour for all environmental conditions. The ground based data processing is not described in detail because the most important method has been published elsewhere.
Results: We show that the performance specifications are easily satisfied when the environmental conditions are favourable. Most of the perturbations, hence data corrections, are related to LEO perturbations: high energy particles inside the South Atlantic Anomaly (SAA), eclipses and temperature variations, and line of sight fluctuations due to the attitude control system. Straylight due to the reflected light from the earth, which is controlled by the telescope and baffle design, appears to be negligible.

The CoRoT space mission, launched on December 27th 2006, has been developed and is operated by CNES, with contributions from Austria, Belgium, Brazil, ESA, Germany and Spain.

Four French laboratories associated with the CNRS (LESIA, LAM, IAS, OMP) collaborate with CNES on the satellite development. The authors are grateful to Ian Roxburgh for a careful reading of the manuscript.

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