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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 23, issue 9
Ann. Geophys., 23, 3009–3018, 2005
https://doi.org/10.5194/angeo-23-3009-2005
© Author(s) 2005. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: 1st European Space Weather Week (ESWW)

Ann. Geophys., 23, 3009–3018, 2005
https://doi.org/10.5194/angeo-23-3009-2005
© Author(s) 2005. This work is distributed under
the Creative Commons Attribution 3.0 License.

  22 Nov 2005

22 Nov 2005

Space weather and space anomalies

L. I. Dorman1,2, N. Iucci3, A. V. Belov2, A. E. Levitin2, E. A. Eroshenko2, N. G. Ptitsyna4, G. Villoresi3, G. V. Chizhenkov2, L. I. Gromova2, M. Parisi3, M. I. Tyasto4, and V. G. Yanke2 L. I. Dorman et al.
  • 1Israel Cosmic Ray and Space Weather Center, affiliated to Tel Aviv University, Technion, and Israel Space Agency, Israel
  • 2IZMIRAN, Russian Academy of Science, Moscow, Russia
  • 3Dipartimento di Fisica E. Amaldi, Roma-Tre University, Rome, Italy
  • 4SPb FIZMIRAN, Russian Academy of Science, St. Petersburg, Russia

Abstract. A large database of anomalies, registered by 220 satellites in different orbits over the period 1971-1994 has been compiled. For the first time, data from 49 Russian Kosmos satellites have been included in a statistical analysis. The database also contains a large set of daily and hourly space weather parameters. A series of statistical analyses made it possible to quantify, for different satellite orbits, space weather conditions on the days characterized by anomaly occurrences. In particular, very intense fluxes (>1000 pfu at energy >10 MeV) of solar protons are linked to anomalies registered by satellites in high-altitude (>15000 km), near-polar (inclination >55°) orbits typical for navigation satellites, such as those used in the GPS network, NAVSTAR, etc. (the rate of anomalies increases by a factor ~20), and to a much smaller extent to anomalies in geostationary orbits, (they increase by a factor ~4). Direct and indirect connections between anomaly occurrence and geomagnetic perturbations are also discussed.

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