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Geomagnetic Effects of the Partial Solar Eclipse of 11 September 2007 in Chile and Antarctica

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Abstract

A report of the geomagnetic variations observed in Chile and Antarctica during the partial solar eclipse of September 11, 2007, is presented. The greatest eclipse occurred at 1231:22 UTC in the coordinates 60° S, 90.2° W reaching a maximum magnitude of 0.7505 when the Moon covered 67.21% of the disk of the Sun. A dataset with the geomagnetic field in X, Y, Z coordinates was collected from six magnetic ground stations belonging to the South American Meridional B-Field Array (SAMBA) network. A comparison was made of the data recorded with a baseline obtained of the international Q-days of the month itself. Results show a decrease in the X and an increase in the Y component during the time window of the eclipse in total synchrony with the penumbra passage.

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ACKNOWLEDGMENTS

The authors thank the support of the Direction of Research and Development of the University of La Serena (DIDULS), the Department of Physics of the University of La Serena (DFULS), and the University of La Serena’s Laboratory for Space and Atmospheric Physics (LAFESAT) that enabled the preparation of this paper. Special thanks go to E. Yizengaw, E. Zesta, M. B. Moldwin, and the rest of the SAMBA team for the data, and NASA’s Eclipse Web Site by Fig. 1.

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  1. Departamento de Física, Universidad de La Serena, 1720236, La Serena, Chile

    J. A. Lazzús

  2. Instituto de Investigación Multidisciplinario en Ciencias y Tecnología, Universidad de La Serena, 1720236, La Serena, Chile

    J. A. Lazzús

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Lazzús, J.A. Geomagnetic Effects of the Partial Solar Eclipse of 11 September 2007 in Chile and Antarctica. Geomagn. Aeron. 63, 497–502 (2023). https://doi.org/10.1134/S0016793223600029

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