Volume 38 Issue 3
May  2018
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LI Ao, LI Guozhu, NING Baiqi, YANG Sipeng, WAN Weixing. Case Study of Meteoroid Producing Long-duration Meteor Trail Irregularity[J]. Journal of Space Science, 2018, 38(3): 342-350. doi: 10.11728/cjss2018.03.342
Citation: LI Ao, LI Guozhu, NING Baiqi, YANG Sipeng, WAN Weixing. Case Study of Meteoroid Producing Long-duration Meteor Trail Irregularity[J]. Journal of Space Science, 2018, 38(3): 342-350. doi: 10.11728/cjss2018.03.342

Case Study of Meteoroid Producing Long-duration Meteor Trail Irregularity

doi: 10.11728/cjss2018.03.342
  • Received Date: 2017-06-20
  • Rev Recd Date: 2017-10-19
  • Publish Date: 2018-05-15
  • Meteoroids enter the Earth's atmosphere, creating columns of ionization and leaving a meteor trail of dense plasma, and the meteor irregularities are often produced through plasma instability. Using the simultaneous observations of meteor and meteor trail irregularities obtained by optical video and VHF radar over low latitude Sanya, respectively, a method to derive the characteristics of meteoroid producing meteor trail irregularities is developed. A case of long duration meteor trail irregularities observed during the Geminid meteor shower in December 2015 is investigated. The velocity, mass and orbit parameters of meteoroid are estimated through the location information of the meteor trail irregularities detected by radar and the direction and gray information of meteor trajectory observed by optical video. The results show that the speed and orbital parameters of the meteoroid producing the long-duration case are similar to those of the parent meteoroid causing the Geminid meteor shower. The method is expected to help understanding the occurrence characteristics of meteor trail irregularities and their corresponding meteoroids.

     

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