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Launch Date
May 21, 2010
Launch Site
Tanegashima Space Center, Tanegashima, Japan
Destination
Venus
Type
Orbiter
Status
Successful–In Progress
Nation
Japan
Alternate Names
2010-020D, Planet-C, Venus Climate Orbiter, 36576
Goals
Study weather patterns on Venus, confirm the presence of lightning in thick clouds and search for signs of active volcanism. AccomplishmentsRecovered from missed orbit insertion in 2010 and entered Venus orbit in 2015. Akatsuki is Japan's first successful mission to explore another planet. Key DatesMay 21, 2010: Launch Dec. 6, 2010: Venus Orbit Insertion - 1st Attempt Dec. 7, 2015: Successful Venus Orbit Insertion In DepthThe Venus Climate Orbiter mission (PLANET-C), or "AKATSUKI", is studying the atmospheric circulation of Venus. Meteorological information will be obtained by globally mapping clouds and minor constituents successively with four cameras at ultraviolet and infrared wavelengths, detecting lightning with a high-speed imager, and observing the vertical structure of the atmosphere with radio science techniques. The equatorial elongated orbit with westward revolution matches the Venusian atmosphere, which rotates westward. The systematic, continuous imaging observations will provide us with an unprecedented large dataset of the Venusian atmospheric dynamics. Additional targets of the mission are the exploration of the ground surface and the observation of zodiacal light. The mission complements the European Space Agency's (ESA) Venus Express, which orbited Venus until 2014. SpacecraftLaunch Vehicle: H-2A Spacecraft Mass: 320 kilograms Additional ResourcesNational Space Science Data Center Master Catalog: Akatsuki Institute of Space and Astronautical Science: Akatsuki ISAS Planet-C Project Site Japan Aerospace Exploration Agency |
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