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Mitsubishi Electric Wins New Japanese Meteorological Satellite Contract
Company's fourth consecutive Himawari model expected to enhance weather disaster prevention

TOKYO, Mach 14, 2023 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it won thecontract from the Japan Meteorological Agency (JMA) to build the nation's newest geostationary
meteorological satellite, known as the Himawari-10, which will be the fourth straight such satellite to be built
by Mitsubishi Electric going back to the Himawari-7 some 20 years ago.
The Himawari-10 is a successor to the Himawari-8 and Himawari-9, which are currently operating ingeostationary orbit. The JMA called for proposals for the procurement of the spacecraft, based on Japan’sSpace Policy, to satellite manufactures of both Japan and overseas. Mitsubishi Electric was awarded thecontract based on its extensive experience with satellites and the JMA's high evaluation of the company's
proven DS2000 standard satellite platform and ground-data processing software.

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Himawari-10 Features
1)

Advanced equipment for expanded observation capabilities- Himawari-10 will be equipped with a visible infrared imager and a hyperspectral infrared sounder, bothbuilt by L3 Harris Technologies of the United States, and a space environment sensor from the National
Institute of Information and Communications Technology of Japan (NICT).
- The imager, which offers observation wavelength bands and resolutions superior to those of the Himawari8 and 9, will gather two-dimensional information about cloud and water-vapor distribution, and land, sea
and cloud temperatures based on frequent measurement of visible to infrared rays emitted from the earth’ssurface.
- Himawari-10 will be the first Japanese satellite to use a hyperspectral infrared sounder to gather threedimensional information about water vapor and atmospheric temperature by measuring infrared rays withhigh-spectral resolution for improved forecasting of heavy and torrential rain as well as typhoon paths.
- The space environmental sensor will measure the intensity of proton and electron beams in the space, which
often are the cause of spacecraft malfunctions, to enhance forecasting reliability.

2)

High-precision attitude stabilization system and ground-data processing software- The DS2000 with a highly durable and precise attitude stabilization system and the ground-data processing
software for calibrating imager and sounder data maximize sensor performance.

3)

High reliability for practical systems- High reliability will be achieved by leveraging the company's long experience with the Himawari series
and its modern production facility, launched in 2020, which offers a highly advanced productionmanagement system for easy access to information for extra-efficient production.

Main Specifications
Satellite Bus
Mass
Dimensions
Orbit
Design life

DS2000 standard satellite platform
Approx. 2.4t dry (without fuel) and approx. 6.1t wet (at launch)
Approx. 4m x 3m x 6m when solar array is stowed
Approx. 11m in width when solar array is deployed
Geostationary orbit
More than 15 years

Renderings of Himawari-10 (not true colors)

2/3Mitsubishi Electric’s Space Business
Mitsubishi Electric has been the leading manufacturer in Japan’s space business for decades, including serving
as the prime contractor of almost half of Japan’s national satellite programs led by the Japan Aerospace
Exploration Agency (JAXA). The company's DS2000 standard satellite platform is utilized for bothexperimental satellites and those operating as essential infrastructure for communications, meteorology andother space-based observations in Japan and overseas.
In addition to delivering the Himawari-7, 8 and 9 models, Mitsubishi Electric developed and maintains
weather-satellite ground facilities.

Spacecraft

Contract Award

LaunchHimawari-7

July 2000

February 2006

Himawari-8
Himawari-9

July 2009

October 2014
November 2016

Weather and aviation-control satellite
Improved resolution and color images

Going forward, Mitsubishi Electric is committed to further supporting the JMA with improved forecasting oftyphoons and both heavy and torrential rains to strengthen disaster prevention in Japan.
###About Mitsubishi Electric Corporation
With more than 100 years of experience in providing reliable, high-quality products, Mitsubishi ElectricCorporation (TOKYO: 6503) is a recognized world leader in the manufacture, marketing and sales of electricaland electronic equipment used in information processing and communications, space development and satellite
communications, consumer electronics, industrial technology, energy, transportation and building equipment.
Mitsubishi Electric enriches society with technology in the spirit of its “Changes for the Better.” The company
recorded a revenue of 4,476.7 billion yen (U.S.$ 36.7 billion*) in the fiscal year ended March 31, 2022. For
more information, please visit www.MitsubishiElectric.com*U.S. dollar amounts are translated from yen at the rate of ¥122=U.S.$1, the approximate rate on the Tokyo
Foreign Exchange Market on March 31, 2022

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