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Long March 2D Carrier Rocket was Successfully Launched with Remote Sensing No.35 Group 02 Satellite
At 10:22 on June 23, 2022, Long March 2D carrier rocket successfully sent the Remote Sensing No.35 Group 02 satellite into a scheduled orbit at Xichang Satellite Launch Center, signaling a complete success of the launch mission and the subsequent highly-intensive launch missions in 2022.
Remote Sensing No.35 Group 02 satellite is mainly used in such fields as scientific experiments,land resources survey, crop yield estimates and disaster prevention and reduction. China Academy of Space Technology and Shanghai Academy of Spaceflight Technology have taken the lead in research and development of the satellite.
The Long March 2D carrier rocket, known as the " top rocket", is a level 2 carrier rocket with liquid propellant of normal temperature developed by Shanghai Academy of Spaceflight Technology. It has a take-off thrust of about 300 tons, which corresponds to 1.2 tons of carrying capacity at the sun-synchronous circular orbit 700 kilometers away, and it can meet the requirements launching one single satellite and multiple satellites at different orbits.
This mission is carried out by the carrier team of Long March 2D of Shanghai Academy of Spaceflight Technology, a crack force that fights hard and strives to win. Under extreme pressure, the team chose to go forward through thick and thin, turning pressure into motivation while carrying out an earlier closed-off management, group quarantine and using private plane, thus ensuring the smooth implementation of various tasks of this mission and earning a complete success. Currently, Shanghai Academy of Spaceflight Technology has successfully completed 9 carrier rocket launch missions, vividly depicting an image of an aerospace fighter with “every team member sticking to their positions and going to all lengths in everything” because of faith, perseverance, and sense of responsibility.
As the "big brother" in domestic rocket industry, Long March 2D carrier rocket has successfully completed 60 launch missions, while boasting an unchanging spirit and character of continuous innovation. The Long March 2D carrier rocket of has dug deep on technological innovation and process optimization in this mission. Since the mission involved a series connection of multiple satellites , the rocket has, for the first time, installed a deorbiting system developed by 805 institute of Shanghai Academy of Spaceflight Technology in the loading section which was separated from it after the satellite went into orbit; A special controlling system was first adopted to improve reliability, reduce the scale of the electric equipment and increase carrying capacity; 2M bit rate relay user terminal was equipped to reduce the guarantee pressure of measurement ship as well as the launch cost by means of space-based measurement; A series of measures such as fully autonomous optical aiming, air tightness test optimization, early installation of inertial groups, and optimization of test items to narrow the testing process in the launching area to 10 days.
Each member of the Long March 2D carrier rocket team is constantly striving for perfection, who earned a complete success of each launch mission by meticulousness. The rocket made early preparations, designing launch trajectory and guidance parameters targeted at different missions launching on different days; to ensure reliability the sealing, the sealing structure of its level 1 and 2 air conduit changed from the original shape of ball head and horn mouth to the shape of rubber ring with conical surface, and the gas leak detection frequencies at the launch area reducing from 172 to 72; measures such as improving rain-proof capability of the rocket body , the rain-resistant capability of the electric system, a reasonable layout of electric resistance and static electricity appliances in all the cabins and a comprehensive check of rain-proof and thunder-proof measures are carried out to adapt to the extremely harsh environment of high temperature, frequent raining and thunderstorms in summer in Xichang.
It’s the 60th launch of the Long March 2D carrier rocket, the 159th flight experiment of the Long March series carrier rockets developed by Shanghai Academy of Spaceflight Technology, as well as the 424th launch of the Long March series carrier rockets.