China's new record! "Made in Shanghai" Changerding One Arrow 41 Satellite Launch Successfully Launched in China | Satellite | Successfully Launched
At 13:30 today, China used the Long March-2D carrier rocket at the Taiyuan Satellite Launch Center to accurately launch 41 satellites, including the Jilin-1 High Resolution 06A satellite, into the designated orbit. The launch mission was a complete success, setting a new record for China's highest number of satellites with one rocket.
The Long March-2D carrier rocket carrying out this mission is a room temperature liquid two-stage carrier rocket developed by the Shanghai Aerospace Technology Research Institute of China Aerospace Science and Technology Group. It has the characteristics of high reliability, good economy, and strong adaptability, and can support various launch needs such as single satellite, multi satellite parallel, series, and carrier. Its sun synchronous circular orbit has a carrying capacity of up to 1.3 tons and an orbital height of 700 kilometers.
Enable 41 passengers to fly comfortably
To safely and smoothly launch 41 satellites into orbit at once, the first issue to be solved is the layout of the satellites inside the fairing. Not only do we need to ensure that we can sit comfortably, but we also need to ensure that we can sit comfortably.
To this end, the research and development team of Shanghai Aerospace Chang'er-Ding fully sorted out the structure and task requirements of the satellite, fully explored its potential, optimized the layout design, and adopted a layout method of 38 satellite wall mounted and 3 satellite side walls, successfully finding safe and comfortable positions for 41 satellites.
The satellite's "seat" consists of a multi star adapter and a conical support module below. In order to facilitate joint operation of the satellite and arrow, the 4-meter-high multi star adapter is divided into two central load-bearing tubes, upper and lower. Among them, 38 satellites are arranged in rows around the central load-bearing cylinder, ensuring a safe distance between the stars; In this way, the multi star adapter is fully seated, but if the height of the load-bearing cylinder is blindly increased in order to add new seats, passengers will face unbearable vibrations and bumps during the flight phase.
In order to provide a comfortable flying experience for 41 passengers, the model team effectively utilized the space inside the fairing and allowed the passengers below the adapter to move their feet, creating three dedicated seats on the support module, successfully allowing 41 satellites to board the vehicle smoothly. Although the form of the "seats" is relatively novel, they are all high-quality components that have been delivered to "passengers" before, effectively ensuring the safety and reliability of this mission.
Get off safely and accurately
The more satellites there are, the greater the risk of collision during orbital flight after separation. As the 41 satellites have the same "destination", the key to successfully completing this mission is to ensure that "passengers" can safely and smoothly "get off" and enter orbit accurately according to the prescribed separation direction and speed.
In order to avoid crowded collisions when getting off the vehicle, the Shanghai Aerospace Development Team cleverly designed a "drop off plan" to allow the satellites to separate in an orderly manner.
The overall design team divided the 38 satellites on the cylindrical multi star adapter into 6 groups, with each layer of "passengers" divided into one group; The three "passengers" on the lower support module serve as the seventh group, and the satellites are separated in sequence by group. In addition, this rocket is also equipped with 10 thrust reversers, which are activated to widen the distance between each group of satellites, ensuring the safety of separation.
The 41 satellites, including Jilin-1 High Resolution 06A, launched this time were developed by Changguang Satellite Technology Co., Ltd. They can obtain high-resolution Earth observation remote sensing images, provide users with remote sensing information services such as business analysis and regional census, and also provide remote sensing data services for industries such as land resources, mineral development, and smart city construction.
This launch is the 76th launch of the Long March 2D carrier rocket, the 187th launch of the Long March series carrier rocket developed by Shanghai Aerospace Science and Technology Corporation, and the 476th launch of the Long March series carrier rocket.
