{"paper":{"title":"A stellar occultation by the transneptunian object (50000) Quaoar observed by CHEOPS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"A. Brandeker, A. Collier Cameron, A. Erikson, A. E. Simon, A. Fortier, A. Lecavelier des Etangs, A. M. S. Smith, A. R. Gomes-J\\'unior, B. E. Morgado, B. O. Demory, B. Sicardy, C. Broeg, C. Lovis, C. L. Pereira, C. Reimers, D. Barrado, D. Ehrenreich, D. Gandolfi, D. Magrin, D. Piazza, D. Pollacco, D. Queloz, D. S\\'egransan, D. Souami, E. Pall\\'e, F. Braga-Ribas, F. Ratti, G. Anglada, G. Bruno, G. M. Szab\\'o, G. Olofsson, G. Peter, G. Piotto, G. Scandariato, H. G. Flor\\'en, H. Rauer, I. Pagano, I. Ribas, J. Broughton, J. Cabrera, J. Desmars, J. Laskar, J. L. Ortiz, K. G. Isaak, K. Heng, K. Westerdorff, L. Delrez, L. Fossati, L. L. Kiss, L. Marafatto, M. B. Davies, M. Beck, M. Deleuil, M. Fridlund, M. Gillon, M. G\\\"udel, M. Lendl, M. Steller, N. A. Walton, N. Billot, N. C. Santos, N. Hara, N. Rando, N. Thomas, O. D. S. Demangeon, P. F. L. Maxted, P. Santos-Sanz, R. Alonso, R. Ottensamer, R. Ragazzoni, S. C. C. Barros, S. Charnoz, S. Csizmadia, S. G. Sousa, S. Hoyer, S. Udry, T. B\\'arczy, T. Beck, T. G. Wilson, V. Nascimbeni, V. Van Grootel, W. Baumjohann, W. Benz, X. Bonfils, Y. Alibert","submitted_at":"2022-08-12T10:31:57Z","abstract_excerpt":"Stellar occultation is a powerful technique that allows the determination of some physical parameters of the occulting object. The result depends on the photometric accuracy, the temporal resolution, and the number of chords obtained. Space telescopes can achieve high photometric accuracy as they are not affected by atmospheric scintillation. Using ESA's CHEOPS space telescope, we observed a stellar occultation by the Transneptunian object (50000) Quaoar. We compare the obtained chord with previous occultations by this object and determine its astrometry with sub-milliarcsecond precision. Also"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.06204","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2208.06204/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}