ИСТИНА

Jupiter has the strongest internal magnetic field among the planets of the Solar system. It is a rapidly rotating planet. Jupiter’s volcanically active moon Io is a strong source of plasma. These factors provide special features of the Jupiter’s magnetosphere, such as enormous size due to the strongest current disc, and the brightest aurora. The Juno Magnetometer (MAG) data give us a chance to observe the Jupiter’s magnetosphere in a relatively long-term perspective [1]. This instrument provides a large amount of the high quality magnetic field data on the different distances from the planet. In this work we use the global paraboloid model of the magnetic field and current systems in the Jovian magnetosphere [2]. The model has a set of parameters that could be adjusted according to the MAG observations. Some of them vary in time, and MAG long-term data could help us to determine the range of their variations. We consider such parameters, as the inner and outer radii of the magnetodisc, inner radius of the tail current system, the distance to the subsolar point, and others. Acknowledgements. The MAG data was obtained from Planetary Data System (PDS). Instrument scientist of FGM – J. E. P. Connerney. Principal investigator of Juno mission – Scott J. Bolton. References: [1] Bagenal F., Adriani A., Allegrini F., Bolton S. J., Bonfond B., Bunce E. J., Connerney J. E. P., Cowley S. W. H., Ebert R. W., Gladstone G. R., Hansen C. J., Kurth W. S., Levin S. M., Mauk B. H., McComas D. J., Paranicas C. P., SantosCosta D., Thorne R. M., Valek P., Waite J. H., Zarka P. Magnetospheric Science Objectives of the Juno Mission // Space Science Reviews. 2017. V. 213. Issue 1-4. P. 219-287. [2] Alexeev I.I., Belenkaya E.S. Modeling of the Jovian Magnetosphere // Annales Geophysicae. 2005. V. 23. No. 3. P. 809-826