Meteoroids and small sized debris in Low Earth Orbit and at 1 au: Results of recent modelling

McBride, Neil and Green, Simon F. and McDonnell, J.A.M. (1998) Meteoroids and small sized debris in Low Earth Orbit and at 1 au: Results of recent modelling. In: B0.2 Symposium of COSPAR Scientific Commission B on Space Debris at the 32nd COSPAR Scientific Assembly, Jul 12-19, 1998, Nagoya, Japan. (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)

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We present consolidated flux data from the Long Duration Exposure Facility (LDEF) and develop an isotropic meteoroid model applicable to predicting damage to the LDEF surfaces. The model is shown to work well, and is used to derive the resultant component of orbital debris incident on the LDEF east (ram) and west (wake) faces. Overall, orbital debris dominates the measured fluxes at small sizes (aluminium penetration depth F-max < 30 mu m) whereas meteoroids dominate above this size (see also McDonnell et al., 1997). The east and west face comparison shows that at least 2 distinct populations of debris exist with different size distributions. Analysis of data from the European Retrievable Carrier (EuReCa) shows the interplanetary meteoroid flux to he biased towards the Earth-apex direction (in the measured size regime). An enhanced meteoroid model is derived which is consistent with both EuReCa and LDEF data, and which does not affect the debris fluxes derived from LDEF data. (C) 1999 COSPAR. Published by Elsevier Science Ltd.

Item Type: Conference or workshop item (Paper)
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: I.T. Ekpo
Date Deposited: 07 Apr 2009 15:03
Last Modified: 21 May 2014 10:46
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