China News Service, Beijing, July 13 (Ma Shuisha) At 0:30 on July 13, Beijing time, China successfully launched the Tianlian-2-03 satellite using the Long March 3B carrier rocket at the Xichang Satellite Launch Center.
So far, China's second-generation geosynchronous orbit data relay satellite system has been officially completed, and the space-based measurement and control and data relay capabilities have been greatly improved.
Photography: Qiu Lijun
Tianlian-2 03 satellite was developed by the Fifth Academy of China Aerospace Science and Technology Corporation and is the third satellite of China's second-generation geosynchronous orbit data relay satellite system.
After the satellite enters orbit and completes the test, it will realize global network operation with Tianlian-2 01 and 02 satellites, which can meet the global coverage of medium and low orbit spacecraft and provide 24-hour uninterrupted communication.
The successful development of Tianlian-2-03 satellite verifies the ability of Tianlian-2 satellite to be rapidly developed, provides support for the subsequent multi-satellite rapid on-orbit networking, and further accelerates the pace of China's space-based measurement, control and transmission network construction.
At present, China has successfully developed two generations of geosynchronous orbit data relay satellite systems.
The first generation successfully launched five satellites from Tianlian 1 01 to 05, and the second generation has successfully launched three Tianlian 2 satellites 01 to 03.
Relay satellites mainly serve spacecraft, like "satellites of satellites".
The main task of the "Skylink" relay satellite is to provide data relay and measurement and control services for manned spacecraft such as spacecraft, space laboratories, and space stations.
The communication of important tasks such as sky-earth calls, space teaching, rendezvous and docking, and out-of-vehicle activities is mainly completed by "Skylink" relay satellites.
With the development of technology, "Skylink" relay satellites have gradually expanded their applications.
Today, "Skylink" relay satellites can also provide data relay and measurement and control services for medium and low orbit resource satellites, and provide measurement and control support for spacecraft launch.
The Long March 3B carrier rocket for this launch mission was developed by the First Academy of China Aerospace Science and Technology Corporation and belongs to the "Gold Medal Rocket" Changsanjia series, which adopts the unified configuration design idea of the Changsanjia series of rockets.
Up to now, the 5 Tianlian-1 satellites and the 3 Tianlian-2 satellites have all been launched by the Long March 3B series of rockets, with a 100% launch success rate.
This launch is the second launch of the Long March 3B carrier rocket in 2022 and the 426th launch of the Long March series of carrier rockets.
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