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Original title: China’s first deep space antenna array system was officially launched and directly incorporated into the Tianwen-1 and Chang’e-4 missions. Source: People’s Daily
The reporter learned from the Xi’an Satellite Measurement and Control Center that after nearly two years of construction, China’s first deep space antenna array system was officially completed and completed various debugging and testing tasks in the Kashgar Deep Space Station of the Xi’an Satellite Measurement and Control Center. Invest directly in the “Tianwen 1” and “Chang’e 4” missions.
According to reports, as the Chinese go further and further into deep space, a single large-aperture measurement and control antenna can no longer meet the needs of deep space measurement and control tasks for measurement and control and data transmission. In order to improve the ability of the ground system to receive downlink data from deep space probes, the center built three 35-meter aperture antennas at the Kashgar deep space station, which were combined with the original 35-meter antenna. meters from the station to form a 4 × 35 meter deep space antenna. The array system achieves the data reception capability of a 66 meter equivalent antenna, and the detection range and reception sensitivity will be greatly improved compared to existing equipment, providing strong measurement and control support for you to China undertake various deep space exploration tasks.
Li Sihu, head of the Kashgar Observation and Control Station of the Xi’an Satellite Observation and Control Center, told reporters that the system can not only perform high-precision monitoring and control of a single probe in the deep space, but each antenna can also work independently to achieve simultaneous tracking of multiple targets in deep space. In addition, the system can perform remote matrix training with other astronomical observatories at home and abroad to carry out joint radio astronomy observation activities.
During the interview, the reporter learned that, to ensure that the system can be put on the “Tianwen No. 1” measurement and control mission as soon as possible, since the beginning of this year, the station has actively overcome the adverse effects of the new corona pneumonia epidemic and strives to strengthen the organization, command and quality of the mission. Management, strengthen technical risk investigation and quality risk management and control, to ensure that the far-space antenna array system can be successfully delivered and put into operation on time.
It is understood that as an important part of China’s deep space measurement and control network, the Kashgar Deep Space Station subordinate to the Xi’an Satellite Measurement and Control Center has successfully completed the “flight test Chang’e-3 Reentry and Return Flight Test, “Chang’e-5 Return and Return Flight Test” and the “Queqiao Relay Satellite”, “Chang’e-4” and other control and measurement of deep space. Throughout the mission phase of “Tianwen-1”, the Kashgar Deep Space Station will be relayed hand in hand with Jiamusi and the Argentina Deep Space Station below the center to continuously receive and record data transmission data. and detector telemetry, and implement orbit measurement and uplink remote control. The tasks of collecting, recording and transmitting the raw interferometric data have accompanied the “Tianwen No. 1” fire detection trip.
Before the end of this year, China is also expected to implement the “Chang’e 5” lunar surface sampling and return mission. At present, each space station has successfully completed the verification of the satellite-to-ground interface and satellite-to-ground docking, and has carried out equipment maintenance, daily equipment index tests and specific training of tasks during the gap between the Tianwen-1 and Chang’e-4 missions. Be well prepared for the task.
