Zobrazeno 1 - 10
of 152
pro vyhledávání: '"O. Norberg"'
Publikováno v:
Annales Geophysicae, Vol 23, Pp 535-543 (2005)
Heavy ion injection events (registered in the C+/N+/O+ mass channel) into the ionosphere at 1700km height are surveyed using the Swedish-German Freja satellite data. Heavy ion injections from the inner magnetosphere are mostly found in the nightsi
Externí odkaz:
https://doaj.org/article/e68b94d85eed45dfb5038b50beeb0f32
Autor:
O. Norberg, J. D. Winningham, H. Lauche, W. Keith, W. Puccio, J. Olsen, K. Lundin, J. Scherrer
Publikováno v:
Annales Geophysicae, Vol 19, Pp 593-600 (2001)
The miniature electron and ion spectrometer MEDUSA on Astrid-2 consists of two "top-hat"-type spherical electrostatic analyzers, sharing a common top-hat. Fast energy sweeps (16 electron sweeps and 8 ion sweeps per second) allow for very high
Externí odkaz:
https://doaj.org/article/0dcc9512d95748fbb68008e2f4d73e09
Publikováno v:
Annales Geophysicae, Vol 19, Pp 621-631 (2001)
Data from the Astrid-2 satellite taken between April and July 1999 show several examples of dense ion clouds in the 0.1–2 keV energy range inside the inner mag-netosphere, both in the northern and southern hemispheres. These inner magnetosphe
Externí odkaz:
https://doaj.org/article/8cf5e21607334ac0b9c30074bbc4e050
Publikováno v:
Annales Geophysicae, Vol 19, Pp 611-619 (2001)
The "cusp proper" is generally understood to be the region enclosed by the outermost magnetospheric field lines as they map to low altitudes. It is therefore a weak-field region with continuous contact with magnetosheath plasma. Data from the
Externí odkaz:
https://doaj.org/article/a8d2f6b1675145cbbaf2a2dd0b53e364
Publikováno v:
Advances in Space Research. 31:313-318
The scientific objective of the nanosatellite Munin is to collect data of the auroral activity over both the northern and southern poles. The satellite has been developed by Swedish Institute of Space Physics under international cooperation. The purp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68ce6c8c6fa63d70ecbe0f4f86a5f513
https://doi.org/10.1016/s0273-1177(02)00619-1
https://doi.org/10.1016/s0273-1177(02)00619-1
Autor:
Yusuke Ebihara, S. H. Høymork, O. Norberg, Yasuhito Narita, Masatoshi Yamauchi, D. Winningham
Publikováno v:
Annales Geophysicae. 19:621-631
Data from the Astrid-2 satellite taken between April and July 1999 show several examples of dense ion clouds in the 0.1–2 keV energy range inside the inner mag-netosphere, both in the northern and southern hemispheres. These inner magnetospheric io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f5199412ea70fe3a0ded10b45274113
https://doi.org/10.5194/angeo-19-621-2001
https://doi.org/10.5194/angeo-19-621-2001
Publikováno v:
Acta Astronautica. 46:319-326
The paper describes the passive magnetic attitude control system developed for the Swedish nanosatellite MUNIN, its composition, and the results of the mathematical modeling of the satellite motion around its center of mass under the effects of exter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b655b508c19734cfec9c180b15d4567f
https://doi.org/10.1016/s0094-5765(99)00226-x
https://doi.org/10.1016/s0094-5765(99)00226-x
Publikováno v:
Advances in Space Research. 26:31-36
We investigate how the two geostationary spacecraft, Meteosat-3 and Tele-X, are affected by the space environment, as characterized by Dst, Kp, and energetic electron flux (> 2 MeV, EEF). Neural network models are developed to predict spacecraft anom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d67602732289cd47a36e13d2bd89fbd7
https://doi.org/10.1016/s0273-1177(99)01023-6
https://doi.org/10.1016/s0273-1177(99)01023-6
Autor:
Edmond C. Roelof, Pontus Brandt, O. Norberg, Stas Barabash, Rickard Lundin, Christopher J. Chase
Publikováno v:
Journal of Geophysical Research: Space Physics. 104:2367-2379
Observations of energetic neutral atoms (ENA) in the energy range 26- 52 keV are reported from four occasions during geomagnetically disturbed periods. The data were acquired by the ENA imager flown on the Swedish microsatellite Astrid in a 1000 km c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1986613da9ff55c5d5e0d84aba264a6e
https://doi.org/10.1029/98ja02715
https://doi.org/10.1029/98ja02715
Autor:
Jean-Gabriel Trotignon, O. Norberg, A. Balogh, G. Musmann, Karoly Szego, Rolf Boström, K. Lundin, James L. Burch, Rickard Lundin, F. Kuhnke, Anders Eriksson, J. L. Michau, L. Åhlén, W. C. Gibson, Karl-Heinz Glassmeier, Sándor Szalai, Chris Carr, Andrew J. Coates
Publikováno v:
Advances in Space Research. 24:1149-1158
The Rosetta spacecraft will rendez-vous with comet Wirtanen round 2011 and will study it for a period of nearly two years, thus providing a unique opportunity to monitor its behaviour over a wide range of distances from the Sun. A plasma and wave pac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9f2c7f1963f36da0f034d92f023d7fa
https://doi.org/10.1016/s0273-1177(99)80208-7
https://doi.org/10.1016/s0273-1177(99)80208-7