[P-EM09_28AM1] VarSITI - Variability of the Sun and Its Terrestrial Impact

[PEM09-04] あけぼの衛星長期観測データによる内部磁気圏ダイナミクスの解明

*笠原 禎也¹、松岡 彩子²、長井 嗣信³、熊本 篤志⁴、阿部 琢美² (1.金沢大学、2.JAXA/ISAS、3.東工大、4.東北大)

キーワード：あけぼの, 内部磁気圏, 放射線帯, オーロラ, プラズマ波動

Akebono is a Japanese scientific spacecraft which was launched in February, 1989 for observations of the Earth's magnetosphere, and has been operated successfully for 25 years. The regular data acquisition of MGF, PWS, VLF, TED, and RDM is still continued at stations in Japan and Sweden. The operation of the Akebono will be extended until March, 2015 (FY2014) in order to realize collaborative measurements with the Van Allen Probes, and further extension to the end of FY2016 is expected as an optional mission. Because of its unique orbit, the stored data is quite valuable for studying plasma physics in the auroral region as well as the radiation belt. In the present paper, we introduce important achievements of Akebono observation and discuss future science to be obtained from the long term observation data.