Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens grass Luo Yuzi and Harry12345 for the clue delivery! CTOnews.com, March 7, according to CCTV news, 09:37 on March 7, Beijing time, a new generation of carrier rocket "H3" 1, jointly developed by Japan Aerospace Exploration Agency and Mitsubishi heavy Industry, was launched from the seed Island Space Center in Kagoshima Prefecture.

This is the first time that this type of rocket has been launched. Previously, the launch of this type of rocket has been postponed or suspended many times due to technical and weather reasons. The mission is to send an optical remote sensing satellite, Earth 3, to solar synchronous orbit.

Subsequently, due to the failure of secondary ignition, the speed of the arrow continued to slow down, and the Japan Aerospace Center issued a "destroy order" to H3. This also means that the first flight ended in failure and the stars sank into the sea.

According to reports, this is the successor to the H2A rocket that JAXA and Mitsubishi heavy Industries have been jointly developing since 2014. at present, the project lasts nine years and the total cost has exceeded 200 billion yen.

Public data show that the H3 carrier rocket has a maximum diameter of 5.2m, a solar synchronous orbit (SSO) carrying capacity of more than 4 tons, and a geosynchronous transfer orbit (GTO) carrying capacity of 6.5t, and can deliver 8.8t payloads to the geosynchronous transfer orbit (GTO). The payload is about 30 per cent larger than H2A, but the launch cost is about half of it.

The H3 rocket has a maximum configuration (H3-24L) of 63 meters high and a takeoff mass of 575 tons (excluding payload). It uses a solid booster and a liquid hydrogen and liquid oxygen engine for the first and second stages. The design goal is to increase the carrying capacity and reduce the launch cost relative to the Hmura, and it is the main rocket of Japan in the future.

The LE-9 open expansion cycle liquid hydrogen liquid oxygen engine used this time is a new type of high performance rocket engine developed by Japan. It has a single vacuum thrust of 1471 KN (about 150T) and a vacuum specific impulse of 422s, which is the leading level in the world.

A new generation of Japanese rocket H3-22s TF1 will try to launch the ALOS-3 (Advanced Land observation Satellite 3) optical remote sensing satellite again around 09:37 Beijing time on March 6, according to an official notice. CTOnews.com inquiry found that the satellite was developed by Mitsubishi Electric. Its design life is 7 years, the total weight is about 3 tons, the length × height × width (wingspan) is 3.6m × 5.0m × 16.5m, the working orbit is the sun synchronous orbit of height 669km, the place of descent is 10:30AM, the revisit period is 35 days, and the panchromatic resolution is 0.8m.

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