[P-PS01] Outer Solar System Exploration Today, and Tomorrow

[PPS01-07] Jupiter's decametric radio common observation campaign from KOSEN-1 and ground-based radio telescopes

*今井 雅文¹、今井 一雅²、平社 信人³、伊藤 優介³、菅原 達弥³、鈴木 颯太³、西尾 正則⁴、高田 拓⁵、北村 健太郎⁶、中谷 淳⁷、村上 幸一⁸、徳光 政弘⁹、若林 誠¹、KOSEN-1 Team¹⁰ (1.新居浜工業高等専門学校、2.高知工業高等専門学校、3.群馬工業高等専門学校、4.愛知工科大学、5.東京都立産業技術高等専門学校、6.九州工業大学、7.岐阜工業高等専門学校、8.香川高等専門学校、9.米子工業高等専門学校、10.国立工業高等専門学校)

キーワード：キューブサット、木星、KOSEN-1

Since its launch on November 9, 2021, KOSEN-1 has maintained its polar orbit around Earth, communicating the telemetry data with seven college-based ground-tracking stations in Japan. KOSEN-1 is the first 2U CubeSat developed by 10 colleges of the National Institute of Technology (NIT) in Japan. This CubeSat is equipped with a software-defined radio (SDR) receiver that can monitor the electric fields of the waves around 20 MHz by means of a 6.6-m long dipole antenna. The SDR receiver can provide both waveforms and spectra in a 2-MHz bandwidth depending upon the available telemetry to the ground, while the timing of the records is synchronized with the GPS 1 Pulse-Per-Second. The scientific mission from KOSEN-1 is to observe Jupiter's decametric (DAM) radiation in conjunction with ground-based radio telescopes around the world. As one of the KOSEN-1 supporting radio telescopes, we have developed a new small-size radio telescope (LWA-Niyodo), consisting of a couple of the bowtie dipoles in the Shikoku Mountains. The receiver system of LWA-Niyodo follows the hierarchy of the same system onboard KOSEN-1 as an initial phase. In this presentation, we will review the radio observation system onboard KOSEN-1 and the specification of LWA-Niyodo, and show the plan of Jupiter's DAM radio common observation campaign with KOSEN-1 and ground-based radio telescopes in 2022.