Persistent Leonid meteor trails

Types I and II

Jack D. Drummond, Scott Milster, Brent W. Grime, David Barnaby, Chester S. Gardner, Alan Z. Liu, Xinzhao Chu, Michael C. Kelley, Craig Kruschwitz, Timothy Joseph Kane

Research output: Contribution to journalConference article

Abstract

A campaign to study the trails left behind by bright Leonid meteors was conducted in November 1998 and 1999. These mysterious lingering trails have been observed for up to an hour. Such persistence allowed a visual observer at the Starfire Optical Range on Kirtland Air Force Base, near Albuquerque, New Mexico, USA, to direct a sodium resonance laser, a CCD camera, and an intensifed video camera to the trail within two minutes of the meteor's appearance. Subsequent study of this data has identified two kinds of trails, Type I and II, although both may be found in a single trail. Type I trails appear turbid, wider (1 km), and optically thicker than Type II trails, and show very high diffusion rates of 800 m2s-1. Type II trails are thin (100-200 m), smooth in appearance, and exhibit low diffusion rates of 25 m2s-1. Type I trails also have higher line emission rates, and Type II trails often appear parallel. This latter phenomenon is still unexplained.

Original languageEnglish (US)
Pages (from-to)215-219
Number of pages5
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number495
StatePublished - Nov 1 2001
EventProceedings of the meteoroids 2001 Conference - Kiruna, Sweden
Duration: Aug 6 2001Aug 10 2001

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meteor trails
meteor
Video cameras
CCD cameras
Sodium
Lasers
persistence
Air
laser
sodium
meteoroids
rate

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Drummond, J. D., Milster, S., Grime, B. W., Barnaby, D., Gardner, C. S., Liu, A. Z., ... Kane, T. J. (2001). Persistent Leonid meteor trails: Types I and II. European Space Agency, (Special Publication) ESA SP, (495), 215-219.
Drummond, Jack D. ; Milster, Scott ; Grime, Brent W. ; Barnaby, David ; Gardner, Chester S. ; Liu, Alan Z. ; Chu, Xinzhao ; Kelley, Michael C. ; Kruschwitz, Craig ; Kane, Timothy Joseph. / Persistent Leonid meteor trails : Types I and II. In: European Space Agency, (Special Publication) ESA SP. 2001 ; No. 495. pp. 215-219.
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Drummond, JD, Milster, S, Grime, BW, Barnaby, D, Gardner, CS, Liu, AZ, Chu, X, Kelley, MC, Kruschwitz, C & Kane, TJ 2001, 'Persistent Leonid meteor trails: Types I and II', European Space Agency, (Special Publication) ESA SP, no. 495, pp. 215-219.

Persistent Leonid meteor trails : Types I and II. / Drummond, Jack D.; Milster, Scott; Grime, Brent W.; Barnaby, David; Gardner, Chester S.; Liu, Alan Z.; Chu, Xinzhao; Kelley, Michael C.; Kruschwitz, Craig; Kane, Timothy Joseph.

In: European Space Agency, (Special Publication) ESA SP, No. 495, 01.11.2001, p. 215-219.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Persistent Leonid meteor trails

T2 - Types I and II

AU - Drummond, Jack D.

AU - Milster, Scott

AU - Grime, Brent W.

AU - Barnaby, David

AU - Gardner, Chester S.

AU - Liu, Alan Z.

AU - Chu, Xinzhao

AU - Kelley, Michael C.

AU - Kruschwitz, Craig

AU - Kane, Timothy Joseph

PY - 2001/11/1

Y1 - 2001/11/1

N2 - A campaign to study the trails left behind by bright Leonid meteors was conducted in November 1998 and 1999. These mysterious lingering trails have been observed for up to an hour. Such persistence allowed a visual observer at the Starfire Optical Range on Kirtland Air Force Base, near Albuquerque, New Mexico, USA, to direct a sodium resonance laser, a CCD camera, and an intensifed video camera to the trail within two minutes of the meteor's appearance. Subsequent study of this data has identified two kinds of trails, Type I and II, although both may be found in a single trail. Type I trails appear turbid, wider (1 km), and optically thicker than Type II trails, and show very high diffusion rates of 800 m2s-1. Type II trails are thin (100-200 m), smooth in appearance, and exhibit low diffusion rates of 25 m2s-1. Type I trails also have higher line emission rates, and Type II trails often appear parallel. This latter phenomenon is still unexplained.

AB - A campaign to study the trails left behind by bright Leonid meteors was conducted in November 1998 and 1999. These mysterious lingering trails have been observed for up to an hour. Such persistence allowed a visual observer at the Starfire Optical Range on Kirtland Air Force Base, near Albuquerque, New Mexico, USA, to direct a sodium resonance laser, a CCD camera, and an intensifed video camera to the trail within two minutes of the meteor's appearance. Subsequent study of this data has identified two kinds of trails, Type I and II, although both may be found in a single trail. Type I trails appear turbid, wider (1 km), and optically thicker than Type II trails, and show very high diffusion rates of 800 m2s-1. Type II trails are thin (100-200 m), smooth in appearance, and exhibit low diffusion rates of 25 m2s-1. Type I trails also have higher line emission rates, and Type II trails often appear parallel. This latter phenomenon is still unexplained.

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Drummond JD, Milster S, Grime BW, Barnaby D, Gardner CS, Liu AZ et al. Persistent Leonid meteor trails: Types I and II. European Space Agency, (Special Publication) ESA SP. 2001 Nov 1;(495):215-219.