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        Real-Time Flux Density Measurements of the 2011 Draconid Meteor Outburst

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        Final Accepted Version (PDF, 149Kb)
        Author
        Molau, S.
        Barentsen, G.
        Attention
        2299/14261
        Abstract
        During the 2011 outburst of the Draconid meteor shower, members of the Video Meteor Network of the International Meteor Organization provided, for the first time, fully automated flux density measurements in the optical domain. The data set revealed a primary maximum at 20:09 UT ± 5 min on 8 October 2011 (195.036° solar longitude) with an equivalent meteoroid flux density of (118 ± 10) × 10/km/h at a meteor limiting magnitude of +6.5, which is thought to be caused by the 1900 dust trail. We also find that the outburst had a full width at half maximum of 80 min, a mean radiant position of α = 262.2°, δ = +56.2° (±1.3°) and geocentric velocity of v = 17.4 km/s (±0.5 km/s). Finally, our data set appears to be consistent with a small sub-maximum at 19:34 UT ±7 min (195.036° solar longitude) which has earlier been reported by radio observations and may be attributed to the 1907 dust trail. We plan to implement automated real-time flux density measurements for all known meteor showers on a regular basis soon.
        Publication date
        2014-08
        Published in
        Earth, Moon and Planets
        Published version
        https://doi.org/10.1007/s11038-013-9425-3
        Other links
        http://hdl.handle.net/2299/14261
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