2003 EH_1 and the Quadrantid shower

Details 2003 EH_1 and the Quadrantid shower 2003 EH_1 and the Quadrantid shower

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jimo...32....7j&link_type=abstract

WGN, Journal of the International Meteor Organization, vol. 32, no.1, p.7-10

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Scientific paper

Photographic observations of the Quadrantid shower in 1995 by members of the Dutch Meteor Society showed little sign of the diffusion created by frequent close encounters with Jupiter. From this, I suspected that the parent was still among the meteoroids, difficult to observe because it may no longer be active. On March 6, the Lowell Observatory Near-Earth Object Survey first spotted this asteroid and since the orbit was refined significantly by other observers in the next 48 days, I now find it very close to that expected for the Quadrantid parent. The identification of a dust trail in the orbit of 2003 EH_1 (the Quadrantids) identifies this object as a (now likely extinct) comet nucleus that appears to be the remnant of a larger object that broke up about 500 years ago. Only a breakup can account for both the young age and the large amount of mass in the stream. Efforts to link the orbit of 2003 EH_1 to that of comet C/1490 Y1 await a better orbit for 2003EH_1, but do not seem to exclude the possibility that this sighting was associated with that breakup.

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