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  New information recovered from the Pioneer 11 meteoroid experiment data

Dikarev, V., & Grün, E. (2002). New information recovered from the Pioneer 11 meteoroid experiment data. Astronomy & Astrophysics, 383(1), 302-308.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-83D8-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-83D9-F
Genre: Journal Article

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 Creators:
Dikarev, V.1, Author              
Grün, E.1, Author              
Affiliations:
1Ralf Srama - Heidelberg Dust Group, Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907558              

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Free keywords: methods : statistical; instrumentation : detectors; meteors; meteoroids
 Abstract: Data of the Pioneer 11 meteoroid experiment are re-evaluated. A probabilistic model of the dust detector is constructed with no assumption on the flux of particles, using built-in redundancy of the instrument only. The analysis of redundant data strongly suggests that the instrument had suffered a failure at launch that disabled a significant part of its impact sensors. This failure reduced the total sensitive area of the detector, and the fluxes derived earlier assuming the instrument was in good health underestimated the true fluxes. We apply our model to re-derive the true particle fluxes, taking now the reduction of the initial sensor number into account. We implement a kind of in-flight calibration of a dust detector in natural meteoroid environment. We end up with higher true fluxes and wider confidence intervals that represent the best knowledge of the instrument's in-flight characteristics.

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Language(s): eng - English
 Dates: 2002-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 27812
ISI: 000174183500036
 Degree: -

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Title: Astronomy & Astrophysics
  Alternative Title : Astron. Astrophys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 383 (1) Sequence Number: - Start / End Page: 302 - 308 Identifier: ISSN: 1432-0746