Electronic Telegram No. 5456 Central Bureau for Astronomical Telegrams Mailing address: Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network 2024 DRACONID METEOR OUTBURST D. Vida, A. Egal, P. Brown, and M. Campbell-Brown, University of Western Ontario; and W. Cooke and D. Moser, Meteoroid Environment Office, NASA, report an outburst of the Draconid meteor shower observed by the Global Meteor Network (GMN). The outburst peaked at a zenithal hourly rate (ZHR) of 15.7 +/- 1.4 meteors/hr at solar longitude 195.08 +/- 0.05 deg (2024 Oct. 8d05h15m UTC +/- 1 hour). The ZHR was computed assuming a mass index of s = 2.0 and a population index of r = 2.5. The total period of elevated activity lasted approximately 10 hours. Detailed data and plots are available on the GMN flux webpage at URL https://globalmeteornetwork.org/flux. Observations by the Canadian Meteor Orbit Radar (CMOR) show a similar peak at solar longitude 195.133 +/- 0.04 deg. Preliminary dynamical modeling suggests that the outburst may have been caused by a trail ejected from comet 21P/Giacobini- Zinner in 1900. The authors thank all participants in the Global Meteor Network project. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2024 CBAT 2024 October 12 (CBET 5456) Daniel W. E. Green