{"paper":{"title":"The 2011 October Draconids outburst. I. Orbital elements, meteoroid fluxes and 21P/Giacobini-Zinner delivered mass to Earth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","physics.space-ph"],"primary_cat":"astro-ph.EP","authors_text":"Alberto J. Castro-Tirado, Alejandro S\\'anchez de Miguel, Antonio Francisco Mar\\'in, Armand Oliva, Diego Rodr\\'iguez, Francesc Pruneda, Francisco Oca\\~na, I. P. Williams, Jacinto Alonso-Azc\\'arate, Jaime Izquierdo, Jaime Zamorano, Joan Dergham, Jordi Cort\\'es, Jos\\'e L. Ortiz, Jos\\'e M. Madiedo, Josep M. Trigo-Rodr\\'iguez, Juan Lacruz, Juan Pastor Erades, Mar Tapia, Pep Pujols","submitted_at":"2013-04-29T12:15:45Z","abstract_excerpt":"On October 8th, 2011 the Earth crossed the dust trails left by comet 21P/Giacobini-Zinner during its XIX and XX century perihelion approaches with the comet being close to perihelion. The geometric circumstances of that encounter were thus favorable to produce a meteor storm, but the trails were much older than in the 1933 and 1946 historical encounters. As a consequence the 2011 October Draconid display exhibited several activity peaks with Zenithal Hourly Rates of about 400 meteors per hour. In fact, if the display had been not forecasted, it could have passed almost unnoticed as was strongl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7635","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":""},"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"}