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Norberg, Carol
Publications (10 of 11) Show all publications
Vaverka, J., Nakamura, T., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., . . . Pellinen-Wannberg, A. (2018). Comparison of Dust Impact and Solitary Wave Signatures Detected by Multiple Electric Field Antennas Onboard the MMS Spacecraft. Journal of Geophysical Research - Space Physics, 123(8), 6119-6129
Open this publication in new window or tab >>Comparison of Dust Impact and Solitary Wave Signatures Detected by Multiple Electric Field Antennas Onboard the MMS Spacecraft
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2018 (English)In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 123, no 8, p. 6119-6129Article in journal (Refereed) Published
Abstract [en]

Dust impact detection by electric field instruments is a relatively new method. However, the influence of dust impacts on electric field measurements is not completely understood and explained. A better understanding is very important for reliable dust impact identification, especially in environments with low dust impact rate. Using data from Earth-orbiting Magnetospheric Multiscale mission (MMS) spacecraft, we present a study of various pulses detected simultaneously by multiple electric field antennas in the monopole (probe-to-spacecraft potential measurement) and dipole (probe-to-probe potential measurement) configurations. The study includes data obtained during an impact of a millimeter-sized object. We show that the identification of dust impacts by a single antenna is a very challenging issue in environments where solitary waves are commonly present and that some pulses can be easily misinterpreted as dust impacts. We used data from multiple antennas to distinguish between changes in the spacecraft potential (dust impact) and structures in the ambient plasma or electric field. Our results indicate that an impact cloud is in some cases able to influence the potential of the electric field antenna during its expansion.

Place, publisher, year, edition, pages
American Geophysical Union (AGU), 2018
Keywords
dust, solitary waves, electric field instruments, MMS, dust impacts
National Category
Fusion, Plasma and Space Physics Astronomy, Astrophysics and Cosmology
Identifiers
urn:nbn:se:umu:diva-152903 (URN)10.1029/2018JA025380 (DOI)000445731300002 ()
Funder
Swedish National Space Board, 110/14
Available from: 2018-10-30 Created: 2018-10-30 Last updated: 2018-10-30Bibliographically approved
Vaverka, J., Pellinen-Wannberg, A., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., . . . Pitkänen, T. (2017). Detection of EMPs generated by meteoroid impacts on the MMS spacecraft and problems with signal interpretation. In: 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS): . Paper presented at 32nd General Assembly and Scientific Symposium of the International-Union-of-Radio-Science (URSI GASS), Montreal, QC, Canada, 19-26 August, 2017. IEEE
Open this publication in new window or tab >>Detection of EMPs generated by meteoroid impacts on the MMS spacecraft and problems with signal interpretation
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2017 (English)In: 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), IEEE, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Signatures of hypervelocity dust impacts detected by electric field instruments are still not completely understood. We have used the electric field instrument onboard one of the MMS spacecraft orbiting the Earth since 2015 to study various pulses in the measured electric field detected simultaneously by multiple antennas. This unique instrument allows a detailed investigation of registered waveforms. The preliminary results shown that the solitary waves can generate similar pulses as dust impacts and detected pulses can easily by misinterpreted when only one antenna is used.

Place, publisher, year, edition, pages
IEEE, 2017
National Category
Fusion, Plasma and Space Physics
Identifiers
urn:nbn:se:umu:diva-163055 (URN)10.23919/URSIGASS.2017.8105218 (DOI)000463723600268 ()978-90-825987-0-4 (ISBN)
Conference
32nd General Assembly and Scientific Symposium of the International-Union-of-Radio-Science (URSI GASS), Montreal, QC, Canada, 19-26 August, 2017
Available from: 2019-09-09 Created: 2019-09-09 Last updated: 2019-09-09Bibliographically approved
Vaverka, J., Pellinen-Wannberg, A., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., . . . Pitkänen, T. (2017). Detection of meteoroid hypervelocity impacts on the Cluster spacecraft: First results. Journal of Geophysical Research - Space Physics, 122(6), 6485-6494
Open this publication in new window or tab >>Detection of meteoroid hypervelocity impacts on the Cluster spacecraft: First results
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2017 (English)In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 122, no 6, p. 6485-6494Article in journal (Refereed) Published
Abstract [en]

We 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. 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. 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.

Keywords
hypervelocity impact, dust detection, interplanetary dust
National Category
Fusion, Plasma and Space Physics
Identifiers
urn:nbn:se:umu:diva-138045 (URN)10.1002/2016JA023755 (DOI)000405534800040 ()
Available from: 2017-08-14 Created: 2017-08-14 Last updated: 2019-09-09Bibliographically approved
Vaverka, J., Pellinen-Wannberg, A., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., . . . Pitkänen, T. (2017). Potential of Earth Orbiting Spacecraft Influenced by Meteoroid Hypervelocity Impacts. IEEE Transactions on Plasma Science, 45(8), 2048-2055
Open this publication in new window or tab >>Potential of Earth Orbiting Spacecraft Influenced by Meteoroid Hypervelocity Impacts
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2017 (English)In: IEEE Transactions on Plasma Science, ISSN 0093-3813, E-ISSN 1939-9375, Vol. 45, no 8, p. 2048-2055Article in journal (Refereed) Published
Abstract [en]

Detection of hypervelocity impacts on a spacecraft body using electric field instruments has been established as a new method for monitoring of dust grains in our solar system. Voyager, WIND, Cassini, and STEREO spacecraft have shown that this technique can be a complementary method to conventional dust detectors. This approach uses fast short time changes in the spacecraft potential generated by hypervelocity dust impacts, which can be detected by monopole electric field instruments as a pulse in the measured electric field. The shape and the duration of the pulse strongly depend on parameters of the ambient plasma environment. This fact is very important for Earth orbiting spacecraft crossing various regions of the Earth's magnetosphere where the concentration and the temperature of plasma particles change significantly. We present the numerical simulations of spacecraft charging focused on changes in the spacecraft potential generated by dust impacts in various locations of the Earth's magnetosphere. We show that identical dust impacts generate significantly larger pulses in regions with lower electron density. We discuss the influence of the photoelectron distribution for dust impact detections showing that a small amount of energetic photoelectrons significantly increases the potential of the spacecraft body and the pulse duration. We also show that the active spacecraft potential control (ASPOC) instrument onboard the cluster spacecraft strongly reduces the amplitude and the duration of the pulse resulting in difficulties of dust detection when ASPOC is ON. Simulation of dust impacts is compared with pulses detected by the Earth orbiting cluster spacecraft in the last part of Section III.

Keywords
Dust grains, hypervelocity impacts, meteoroids, spacecraft charging
National Category
Fusion, Plasma and Space Physics
Identifiers
urn:nbn:se:umu:diva-140978 (URN)10.1109/TPS.2017.2676984 (DOI)000407374400031 ()
Funder
Swedish National Space Board, 110/14Swedish National Space Board, 77/14
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2018-06-09Bibliographically approved
Vaverka, J., Pellinen-Wannberg, A., Kero, J., Mann, I., De Spiegeleer, A., Hamrin, M., . . . Pitkänen, T. (2016). Spacecraft potential influenced by meteoroid hypervelocity impacts. In: : . Paper presented at 14th Spacecraft Charging Technology Conference, ESA/ESTEC, Noordwijk, NL, April 4-8, 2016. IEEE
Open this publication in new window or tab >>Spacecraft potential influenced by meteoroid hypervelocity impacts
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2016 (English)Conference paper, Published paper (Other academic)
Abstract [en]

Detection of hypervelocity impacts on a spacecraft body using electric field instruments has been established as a new method for monitoring of dust grains in our solar system. Voyager, WIND, Cassini, and STEREO spacecraft have shown that this technique can be a complementary method to conventional dust detectors. This approach uses fast short time changes in the spacecraft potential generated by hypervelocity dust impacts, which can be detected by monopole electric field instruments as a pulse in the measured electric field. The shape and the duration of the pulse strongly depend on parameters of the ambient plasma environment. This fact is very important for Earth orbiting spacecraft crossing various regions of the Earth's magnetosphere where the concentration and the temperature of plasma particles change significantly. We present the numerical simulations of spacecraft charging focused on changes in the spacecraft potential generated by dust impacts in various locations of the Earth's magnetosphere. We show that identical dust impacts generate significantly larger pulses in regions with lower electron density. We discuss the influence of the photoelectron distribution for dust impact detections showing that a small amount of energetic photoelectrons significantly increases the potential of the spacecraft body and the pulse duration. We also show that the active spacecraft potential control (ASPOC) instrument onboard the cluster spacecraft strongly reduces the amplitude and the duration of the pulse resulting in difficulties of dust detection when ASPOC is ON. Simulation of dust impacts is compared with pulses detected by the Earth orbiting cluster spacecraft in the last part of Section III.

Place, publisher, year, edition, pages
IEEE, 2016
Series
IEEE Transactions on Plasma Science, ISSN 0093-3813
National Category
Fusion, Plasma and Space Physics
Research subject
Space and Plasma Physics
Identifiers
urn:nbn:se:umu:diva-129378 (URN)10.1109/TPS.2017.2676984 (DOI)
Conference
14th Spacecraft Charging Technology Conference, ESA/ESTEC, Noordwijk, NL, April 4-8, 2016
Funder
Swedish National Space Board
Available from: 2016-12-22 Created: 2016-12-22 Last updated: 2019-09-09Bibliographically approved
Norberg, C. (Ed.). (2013). Human Spaceflight and Exploration (1ed.). Berlin: Springer
Open this publication in new window or tab >>Human Spaceflight and Exploration
2013 (English)Collection (editor) (Other (popular science, discussion, etc.))
Place, publisher, year, edition, pages
Berlin: Springer, 2013. p. 331 Edition: 1
Series
Springer Praxis Books in Astronautical Engineering
Keywords
Space, astronaut, exploration
National Category
Engineering and Technology
Identifiers
urn:nbn:se:umu:diva-84939 (URN)10.1007/978-3-642-23725-6 (DOI)978-3-642-23724-9 (ISBN)978-3-642-23725-8 (electronic bk) (ISBN)
Available from: 2014-01-22 Created: 2014-01-22 Last updated: 2018-06-08Bibliographically approved
Bamford, R. A., Kellett, B., Bradford, W. J., Norberg, C., Thornton, A., Gibson, K. J., . . . Bingham, R. (2012). Minimagnetospheres above the lunar surface and the formation of lunar swirls. Physical Review Letters, 109(8), 081101
Open this publication in new window or tab >>Minimagnetospheres above the lunar surface and the formation of lunar swirls
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2012 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 109, no 8, p. 081101-Article in journal (Refereed) Published
Abstract [en]

In this paper we will present the in-situ satellite data, theory and laboratory validation that show how small scale collisionless shocks and mini-magnetospheres can form on the electron inertial scale length. The resulting retardation and deflection of the solar wind ions could be responsible for the unusual "lunar swirl" patterns seen on the surface of the Moon.

Place, publisher, year, edition, pages
American Physical Society, 2012
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Space and Plasma Physics
Identifiers
urn:nbn:se:umu:diva-62878 (URN)10.1103/PhysRevLett.109.081101 (DOI)000307711300004 ()
Available from: 2014-01-22 Created: 2012-12-19 Last updated: 2018-06-08Bibliographically approved
Bamford, R., Gibson, K. J., Thornton, A. J., Bradford, J., Bingham, R., Gargate, L., . . . Stamper, R. (2008). Interaction of a flowing plasma with a dipole magnetic field: measurements and modelling of a diamagnetic cavity relevant to spacecraft protection. Plasma Physics and Controlled Fusion
Open this publication in new window or tab >>Interaction of a flowing plasma with a dipole magnetic field: measurements and modelling of a diamagnetic cavity relevant to spacecraft protection
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2008 (English)In: Plasma Physics and Controlled FusionArticle in journal (Refereed) Published
Identifiers
urn:nbn:se:umu:diva-11315 (URN)
Available from: 2008-12-12 Created: 2008-12-12 Last updated: 2018-06-09
Norberg, C. (2008). Short Courses at University level as an Inspiration Form. In: Proceedings of the 59th International Astronautical Congress, Glascow, Scotland, 29 Sept 3 Oct 2008.
Open this publication in new window or tab >>Short Courses at University level as an Inspiration Form
2008 (English)In: Proceedings of the 59th International Astronautical Congress, Glascow, Scotland, 29 Sept 3 Oct 2008, 2008Conference paper, Published paper (Other academic)
Identifiers
urn:nbn:se:umu:diva-11316 (URN)
Available from: 2008-12-12 Created: 2008-12-12 Last updated: 2018-06-09Bibliographically approved
Norberg, C. & Weighton, D. (2006). Space Education in Kiruna, Sweden. In: Proceedings of a conference on Space Tourism: From Lofty Dreams to Commercial Reality.
Open this publication in new window or tab >>Space Education in Kiruna, Sweden
2006 (English)In: Proceedings of a conference on Space Tourism: From Lofty Dreams to Commercial Reality, 2006Conference paper, Published paper (Refereed)
Identifiers
urn:nbn:se:umu:diva-12410 (URN)1 85768220 3 (ISBN)
Available from: 2007-04-04 Created: 2007-04-04 Last updated: 2018-06-09Bibliographically approved
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