Draconid Meteors 2011
Abstract
This outburst resulted from the crossing of the 1900 dust ejecta of comet 21P/Giacobini-Zinner. Multi-station video observations using the CAMS data system in northern Germany in support of the Draconid Airborne Observing Campaign (http://draconids.seti.org; led by J. Vaubaillon, IMCCE; and P. Koten, Ondrejov Observatory) were reported by Jenniskens together with M. Gerding (Institute of Atmospheric Physics, Kuehlungsborn) and C. Johannink and M. Langbroek (Dutch Meteor Society); they note that outburst Draconid meteors radiated from a geocentric radiant at R.A. = 262.8 +/- 0.7 deg and Decl. = 55.5 +/- 1.1 deg (equinox 2000.0 presumed), with geocentric velocity V_g = 20.9 +/- 1.0 km/s (error margins are 1-sigma dispersions of trajectory solutions from 28 Draconids, but includes instrument uncertainty). The predicted radiant position for the 1900 dust ejecta was at R.A. = 263.2 deg, Decl. = +55.8 deg, with V_g = 20.9 km/s. This outburst was detected by SkyMet radar systems in Andoya (R. Latteck, IAP Kuehlungsborn) and in Canada (P. Brown, University of Western Ontario).
- Publication:
-
Central Bureau Electronic Telegrams
- Pub Date:
- October 2011
- Bibcode:
- 2011CBET.2862....2V