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dc.contributor.authorVaverka, Jakub
dc.contributor.authorPellinen-Wannberg, Asta
dc.contributor.authorKero, Johan
dc.contributor.authorMann, Ingrid
dc.contributor.authorDe Spiegeleer, Alexandre
dc.contributor.authorHamrin, Maria
dc.contributor.authorNorberg, Carol
dc.contributor.authorPitkaenen, Timo
dc.date.accessioned2019-08-05T12:56:50Z
dc.date.available2019-08-05T12:56:50Z
dc.date.issued2017-06-29
dc.description.abstractWe present the first study of dust impact events on one of the Earth‐orbiting Cluster satellites. The events were identified in the measurements of the wide band data (WBD) instrument on board the satellite operating in monopole configuration. Since 2009 the instrument is operating in this configuration due to the loss of three electric probes and is therefore measuring the potential between the only operating antenna and the spacecraft body.<br> Our study shows that the WBD instrument on Cluster 1 is able to detect pulses generated by dust impacts and discusses four such events. The presence of instrumental effects, intensive natural waves, noncontinuous sampling modes, and the automatic gain control complicates this detection.<br> Due to all these features, we conclude that the Cluster spacecraft are not ideal for dust impact studies. We show that the duration and amplitudes of the pulses recorded by Cluster are similar to pulses detected by STEREO, and the shape of the pulses can be described with the model of the recollection of impact cloud electrons by the positively charged spacecraft. We estimate that the detected impacts were generated by micron‐sized grains with velocities in the order of tens of km/s.en_US
dc.description.sponsorshipThis work was supported by the Swedish National Space Board project dnr 110/14. Johan Kero is supported by Swedish Research Council project grant 2012-4074.en_US
dc.descriptionPublished version, available at: <a href=https://doi.org/10.1002/2016JA023755>https://doi.org/10.1002/2016JA023755</a>en_US
dc.identifier.citationVaverka, J., Pellinen-Wannberg, A., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., Norberg, C., Pitkaenen, T. (2017) Detection of meteoroid hypervelocity impacts on the Cluster spacecraft: First results.<i> Journal of Geophysical Research - Space Physics,122</i> (6), 6485-6494. http://dx.doi.org/10.1002/2016JA023755en_US
dc.identifier.cristinIDFRIDAID 1490085
dc.identifier.doi10.1002/2016JA023755
dc.identifier.issn2169-9380
dc.identifier.issn2169-9402
dc.identifier.urihttps://hdl.handle.net/10037/15844
dc.language.isoengen_US
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.journalJournal of Geophysical Research - Space Physics
dc.relation.projectIDNorges forskningsråd: 262941en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437en_US
dc.titleDetection of meteoroid hypervelocity impacts on the Cluster spacecraft: First resultsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US


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