Development of optical-infrared and radio instruments

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Development of optical-infrared and radio instruments for space-borne and ground observations

Our Haleakala Telescopes and Visible and Infrared instruments

We are carrying out several ongoing telescope projects (T60、T40 and PLANETS) at Haleakala observatory in Hawaii as well as the development of high-resolution optical-infrared spectrometers for planetary and exoplanetary observations.


Fig. T60 telescope (left) and multi-wavelength polarization imager DIPOL-2 (top) at Haleakala observatory in Hawaii.

Development of optical-infrared and radio instruments for space-borne and ground observations

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Space-borne instrument

We developed space-borne instruments as joint project with JAXA international collaborations, such as an auroral satellite Reimei, Moon orbiter Kaguya, Venus orbiter Akatsuki, planetary telescopoe Hisaki, geospace satellite Arase, IMAP/VISI on the international space station the international space station. We are currently carrying out on-going space craft missions, like a Mars moon sample return exploration (MMX) and ESA’s Jupiter mission (JUICE) which will be launched in 2020s.


Fig. A visible and near-infrared spectrograph IMAP/VISI for auroral and airglow observations installed on the international space station. (c) JAXA

Development of optical-infrared and radio instruments for space-borne and ground observations

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English

Instruments for radio wave observation

Various kinds of radio wave receiving systems have been developed for covering the wide frequency range of several ten KHz to several hundred MHz. The targets of the instruments are natural radio waves originated from Jupiter’s magnetosphere and solar corona which include information on wave generation processes and plasma environment along propagation paths, and also artificial radio waves which gives information on variations of the terrestrial ionosphere and magnetosphere deduced by the variation of their propagation paths. We have developed ground-based systems such as antenna systems, highly sensitive receivers and high resolution spectro-polarimeters, and also radio wave receivers installed on scientific satellites and planetary explorers which have been performed as domestic/international collaborative projects.


Fig. [left panel] Iitate Planetary Radio Telescope (IPRT) / [right panel] Front-end of the highly sensitive radio wave receiving system installed on IPRT.

This post is also available in: Japanese