AKATSUKI Science Data Archive

This website provides the science data sets obtained by the AKATSUKI (also known as Venus Climate Orbiter and PLANET-C) mission.


UVI [Ultraviolet Imager]

UVI is an ultraviolet imager that is able to capture images with 365-nm wavelength and 283-nm wavelength to map SO2 and unknown absorber, respectively.

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IR1 [1-μm Camera]

IR1 measures the thermal radiaion mostly from the surface and a little from the atmosphere using four filters, 0.90 μm (dayside), 0.90 μm (nightside), 0.97 μm, and 1.01 μm.

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IR2 [2-μm Camera]

IR2 utilizes the atmospheric windows at wavelengths of 1.74, 2.26, and 2.32 μm; the first two suffer only CO2 absorption, while the last one contains a CO absorption band. At these wavelengths the outgoing infrared radiation originates from the altitudes 35 -- 50 km.

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LIR [Longwave Infrared Camera]

LIR detects thermal emission from the cloud top in a wavelength region 8 -- 12 μm to map the cloud-top temperature.

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LAC [Lightning and Airglow Camera]

LAC searches for lightning flashes and maps airglow emissions on the nightside disk of Venus.

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RS [Radio Science]

RS aims to determine the vertical structure of the Venusian atmosphere using radio occultation technique, which is achieved by using Ultra-Stable Oscillator (USO).

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SPICE [SPICE kernels]

Orbit, attitude, and other required ancillary data are archived in SPICE kernels.

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Mission [Mission information]

Mission bundle collects mission-wide information for the Akatsuki mission.

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Past News

Release History

Planned Release Schedule

Planned release schedule is as follows: