When is Fat Five's Long March?

Long March v remote three carrier rocket.

1October 22nd 20 19 19 The rocket transport fleet consisting of Roy 2 1 22 set sail from Tianjin Port and arrived at Wenchang Qinglan Port on the 27th. Then it is transported to Wenchang launch site by road. After completing the preparatory work such as final assembly and testing, he left the vertical test workshop at 8: 00 am on February 2 1 and arrived at the launch site on February 2 10.

On the 27th of the same month, the Hainan Provincial Public Security Department conducted traffic control on some sections of Wenchang City, and gradually restricted foreign vehicles three hours before the launch.

The launch took place on platform Dongfanghong-5 and platform Shi Jian-20 (re-launched by Shi Jian 18, also carried by Yaoer-22). Because this first flying star is equipped with cutting-edge technologies including electric propulsion, 10Gbps laser communication and expandable radiator. The confidentiality is strong, and the launch site signal of the webcast does not start until 1 minute before takeoff.

At 20: 45 on the 27th, the rocket blasted off. /kloc-the booster is separated after 0/74 seconds, and the fairing is thrown after 195 seconds. Because the thrust of YF-77 decreased slightly after "returning to zero", the separation of the first and second stages was extended from 475 seconds in the remote stage to 495 seconds, and the second stage was closed at one time.

At this time, the combination of satellite and arrow is located in the Philippine Sea, over the waters west of Guam. After 2200 seconds, the satellite and the arrow separated, and Shi Jian 20 entered the super-synchronous transfer orbit. On June 6, 65438, the launch mission was scheduled for the 20th, and the on-orbit verification began.

operating characteristic

The Long March-5 remote-3 rocket successfully put Shi Jian-20 satellite into the predetermined orbit, which is an experimental satellite developed based on the public platform of Dongfanghong-5 satellite (Wu Dong).

"Wu Dong" platform is the next generation geosynchronous orbit satellite platform in China, with international leading technical indicators. It has the characteristics of "high load, high power, high heat consumption and high control accuracy", and mainly meets the needs of satellite platforms for communication, microwave remote sensing and optical remote sensing in the next 5 years to 15 years.