Earth Encounter Velocities For Interplanetary Meteoroids

Taylor, A.D. (1995) Earth Encounter Velocities For Interplanetary Meteoroids. In: B1 Symposium and B1.1, B1.3 Meetings of COSPAR Scientific Commission B, at the 13th COSPAR Scientific Assembly, Jul 11-21, 1994, Hamburg, Germany. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not available from this repository. (Contact us about this Publication)
Official URL


The speed distribution of meteoroids encountering the Earth is shown to be similar for all meteoroid masses in the range 1 g to 10(-12)g. The speed distribution of interplanetary meteoroids encountering the Earth has usually been inferred from meteor observations. This paper reviews commonly quoted distributions and introduces more recent estimates. The influence quoted measurement uncertainties have on the distribution of Earth encounter velocities presented by Sekanina and Southworth (1975) and Erickson (1968) is presented. The Divine (1993) model of interplanetary meteoroids fits a set of orbital distributions to a wide range of spacecraft and ground based dust detector observations. By 'flying' the Earth through this model the distribution of geocentric encounter velocities has been obtained for typical particle masses, 10(-9) and 10(-12) g while those at 10(-4) and 10(-5) g are shown to be in error.

Item Type: Conference or workshop item (Paper)
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: I.T. Ekpo
Date Deposited: 25 Oct 2009 10:18
Last Modified: 11 Jul 2014 10:36
Resource URI: (The current URI for this page, for reference purposes)
  • Depositors only (login required):