A temporary earth co-orbital linked to interplanetary field enhancements

M. Connors, C. T. Russell, H. R. Lai

Research output: Contribution to journalJournal Articlepeer-review

5 Citations (Scopus)


Near-Earth asteroid 138175 (2000 EE104) will soon be temporarily resonant with Earth, but has a much longer residence in an orbit which features a trapping behaviour with frequent Earth and Venus encounters. The object has been identified as a possible source of material for interplanetary field enhancements, a magnetic phenomenon in the solar wind inferred to be due to dust arising from secondary collisions with 10-m scale objects injected into its path. Its horseshoe libration will be reversed by a very close encounter with Venus in 2251 CE. We characterize the orbit of this asteroid, model the dispersion of the primary collision products along its path, and discuss the non-gravitational motion of secondary dust in the solar wind.

Original languageEnglish
Pages (from-to)L109-L113
JournalMonthly Notices of the Royal Astronomical Society: Letters
Issue number1
Publication statusPublished - Aug. 2014


  • Celestial mechanics
  • Interplanetary medium
  • Meteorites, meteors, meteoroids
  • Minor planets, asteroids: individual
  • Zodiacal dust


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