Congratulations on the 100th launch of China Long March 3B rocketAt 13:56 Beijing time on December 3, China successfully launched the communication technology experimental satellite 13 into orbit using the Long March 3B carrier rocket from the Xichang Satellite Launch Center. The satellite entered the predetermined orbit smoothly and the launch mission was a complete success. The satellite is developed by the Eighth Academy of China Aerospace Science and Technology Corporation and is mainly used for satellite communication, broadcasting and television, data transmission and other businesses, and related technical experiments and verifications are carried out. The successful completion of this launch mission also means that the Long March 3B carrier rocket has achieved China first 100 space launches of a single model, creating another record of 100 launches in the development of China carrier rockets.The Long March 3B rocket, along with the Long March 3A and Long March 3C rockets, together form the Long March 3A series of "gold medal rockets", which are developed by the First Academy of China Aerospace Science and Technology Corporation. The Chang-3B rocket was approved for construction in 1993. It took 28 years from its maiden flight in 1996 to complete 100 launches, undertaking multiple major national engineering tasks and sending "passengers" such as Beidou, Chang Fengyun, and Tianlian into predetermined orbits. In this mission, the Chang-3B rocket development team carried out multiple technical optimizations on the rocket around product process optimization, reliability improvement, productization, and other aspects. This launch is the 549th launch of the Long March series of carrier rockets.Congratulations on the successful launch of China Haishao-1 satelliteAt 12:46 on December 4th Beijing time, China successfully launched the Haishao-1 satellite into orbit using the Kuaizhou-1A carrier rocket from the Xichang Satellite Launch Center. The satellite entered its designated orbit and the launch mission was a complete success.This is the first domestically developed remote sensing satellite that combines light SAR technology. With a mass of about 400 kilograms, it is equipped with a multi polarized SAR payload and a visible light payload, which can achieve joint observation of optical and SAR remote sensing. It can monitor rivers and mountains running east-west in China on the same orbit at the same time. The low orbit mission segment has an orbit height of 350 kilometers and can be autonomously elevated to an orbit height of 550 kilometers.Tian Di Xing Lian and all employees give thumbs up to China Aerospace