On the 1327 Thursday 21ST March 2024 Hours Hong- Kong SAR – Beijing time CNSA –China National Space Administration , China, People’s Republic of China. Successfully launched the Yonggan 33 Remote Sensing satellite with the Chang Zheng- Long March 2D YZ3 Y3 Carrier Rocket Jiuquan Satellite Launch Center, Inner Mongolia, China, People’s Republic of China, and then successfully launched a Yunhai-2 Group 02 satellites…..
长二丁the Chang Zheng- Long March 2D YZ3 Y3 Rocket/Yuanzheng-3 Upper Stage Successfully launched Yunhai-2 Satellite Group 02….. At 13:27 on March 21 2024, the Long March 2-D carrier rocket/Yuanzheng-3 upper stage took off from the Jiuquan Satellite Launch Center. Subsequently, the Yunhai-2 Group 02 was sent into the predetermined orbit, and the launch mission was a complete success.
Yunhai-2 Group 02 satellites were developed by the Fifth Academy of Aerospace Science and Technology Corporation and are mainly used in the fields of atmospheric environment element detection, space environment monitoring, disaster prevention and reduction, and scientific experiments.
The Chang Zheng- Long March 2D YZ3 Y3 Carrier Rocket and Yuanzheng-3 upper stage were developed by the Eighth Academy of Aerospace Science and Technology Corporation. The Yuanzheng-3 upper stage, known as the “Space Bus”, has the capability of more than 20 independent fast-orbit manoeuvre deployments. It is mainly used for off-orbit multi-satellite deployment missions. It can directly send multiple satellites into predetermined space positions, quickly and flexibly. Access to space, space maneuvering and space utilization all play an important role.
This launch is the 513th launch of the Long March series of launch vehicles.
On the morning of 20th March 2024, Wednesday 0831 hours Hong Kong SAR- Beijing Time at CNSA –China National Space Administration– Wenchang Space Craft launch Center the Queqiao-2 relay satellite was successfully launched…. According to the National Space Administration, the Queqiao-2 relay satellite of the fourth phase of the lunar exploration project was launched by the Long March 8 Yao-3 carrier rocket. China’s Wenchang Space Launch Site successfully launched into space.
After the Chang Zheng- Long March 8 Yao-3 carrier rocket flew for 24 minutes, the star and arrow separated, sending the Queqiao-2 relay satellite directly into the predetermined Earth-moon transfer orbit with a perigee altitude of 200 kilometers and an apogee altitude of 420,000 kilometers. The relay star’s solar wing and center following the normal deployment of the communication antennas, the launch mission was a complete success.
The main load of this mission, the “Queqiao-2” relay satellite, was developed by the Aerospace Dongfanghong Satellite Company of the Fifth Academy of China Aerospace Science and Technology Corporation. It uses the CAST-2000 satellite platform, uses a hydrazine propulsion system, and adopts three-axis stability control. The pointing control accuracy is better than 0.03 degrees, the solar cell array output power is greater than 1350 watts, equipped with a 135 Ah battery, communicates based on the S-band Unified Measurement and Control (Unified S Band) system and the Very Long Baseline Interferometry (VLBl) system, the uplink communication rate is 2000bps, the downlink communication rate 4096/512bps, the satellite mass is about 1.2 tons, contains 488 kilograms of propellant, and has a design life of more than 8 years.
The communication payload carried by the satellite includes a 4.2-meter-diameter X-band parabolic antenna, which is used to communicate with the detector without a tracking device and points to the detector through the guidance navigation and control system (GNC); a 0.6-meter-diameter S/Ka dual-band parabolic antenna, Used to transmit data to the ground station, dual-axis tracking and pointing to the ground station; S-band relay antenna for measurement and control (TT&C); ultra-high frequency (UHF) relay antenna. In addition to providing data and signal forwarding, “Queqiao 2” will also forward various ground uplink instructions to the detector. At the same time, “Queqiao 2” is also a scientific exploration satellite equipped with an extreme ultraviolet camera, an array neutral atom imager, and the Earth-Moon Very Long Baseline Interferometry (VLBl) system.
Subsequently, with the support of ground measurement and control, Queqiao-2 will enter the capture orbit after mid-month correction and near-month braking; then enter the phase-modulation orbit after orbit control, and finally enter the 24-hour lunar mission orbit, becoming the successor to “Queqiao”. “After the relay star, it is the world’s second dedicated relay star beyond the earth’s orbit, providing support for the Chang’e-6 lunar sampling mission, and relaying the “Queqiao” relay star to provide relay communication services for Chang’e-4.
After the Long March 8 Yao-3 carrier rocket flew for 24 minutes, the star and arrow separated, sending the Queqiao-2 relay satellite directly into the predetermined Earth-moon transfer orbit with a perigee altitude of 200 kilometers and an apogee altitude of 420,000 kilometers. The relay star’s solar wing and center The communication antennas were deployed normally one after another. Subsequently, with the support of ground measurement and control, Queqiao-2 will enter the capture orbit after mid-month correction and near-month braking; then enter the phase-modulation orbit after orbit control, and finally enter the 24-hour lunar mission orbit, becoming the successor to “Queqiao”. “After the relay star, it is the world’s second dedicated relay star beyond the earth’s orbit, providing support for the Chang’e-6 lunar sampling mission, and relaying the “Queqiao” relay satellite to provide relay communication services for Chang’e-4.
Queqiao-2″ relay satellite and the carrying satellites “Tiandu-1” and “Tiandu-2” communication technology test satellites. The Long March 8 Yao-3 carrier rocket will be launched from Station 201 of the Wenchang launch site and will send the satellite into the Earth-moon transfer orbit. Minus 45 minutes after launch, the three-story rotating platform has all been opened.
Schematic diagram of “Tiandu No. 1”
Schematic diagram of “Tiandu 2”
The “Tiandu-1” and “Tiandu-2” communication technology test satellites were developed by China Deep Space Exploration Laboratory. Among them, “Tiandu-1” was developed by the Eighth Academy of Aerospace Science and Technology, with a mass of 61 kilograms. “No. 2” was developed with the participation of Harbin Institute of Technology and has a mass of 15 kilograms. After entering the Earth-moon transfer orbit, the “Tiandu” binary stars successfully unfolded their solar wings. Afterwards, they will make mid-course corrections, enter the capture orbit after near-lunar braking, and then enter the 24-hour large elliptical frozen orbit around the moon (Elliptical frozen orbit). , then the two satellites were separated and adjusted to a relative distance of about 200 kilometers to carry out verification of new technologies such as lunar orbit navigation space reference allogeneic calibration, Ka-band communication and ranging integration new system tests, and high-reliability lunar-to-ground transmission and routing.
This launch uses the Long March 8 Yao-3 carrier rocket ” basic rocket, which is 50.34 meters long, has a first-stage diameter of 3.35 meters, a second-stage diameter of 3 meters, a booster diameter of 2.25 meters, a take-off mass of 356 tons, a take-off thrust of 499 tons, and is equipped with a 4.2-meter diameter, The height of the fairing is 12 meters, and the Earth-to-Moon transfer orbit has a transportation capacity of more than 1.3 tons.
At the same time, this mission is also the first deep space launch mission for the ” Long March 8 Yao-3 carrier rocket and China’s new generation medium-sized launch vehicle. It is also the first time that the Long March 8 Yao-3 carrier rocket has undertaken the launch mission of the lunar exploration project of a major national aerospace project.
Arouse the bright moon in the sky, illuminating my ambition, and I am determined to go to Guanghan for an appointment. The divine arrow reaches the sky, and the Magpie Bridge …..
On the 15 March 2024 Hour Hong- Kong SAR – Beijing time CNSA –China National Space Administration ….. the “Chang Zheng -Long March 5” Yao-8 carrier rocket which will carry out the Chang’e-6 mission of the fourth phase of the lunar exploration project, safely arrived at the Wenchang Space Launch Site in China. Subsequently, the rocket will be assembled and tested at the launch site together with the Chang’e-6 probe that arrived in advance. Currently, all participating systems in the launch site area are preparing for the Chang’e-6 mission as planned…..
“Chang Zheng -Long March 5” Yao-8 carrier rocket which will carry out the fourth phase of the lunar exploration project嫦娥六号was safely transported to the Wenchang Space Launch Site in China. Subsequently, the rocket will be assembled and tested at the launch site together with the Chang’e-6 probe that arrived in advance. Currently, all participating systems in the launch site area….
On the 13:32 hours on March 2nd, 2024, Beijing time, after about 8 hours of extravehicular activities, Shenzhou 17 Takionauts Tang Hongbo, Tang Shengjie, and Jiang Xinlin Close coordination, with the cooperation and support of the CNSA- China National Space Administration Tiangong- China space station’s robotic arm and ground scientific researchers, completed all set tasks. Astronauts Tang Hongbo and Jiang Xinlin have safely returned to the Wentian experimental module, and the extravehicular activity was a complete success.
Based on the last EVA maintenance test, this EVA focused on completing the repair work on the solar wing of the Tianhe core module, eliminating the impact of the early impact of tiny particles in space. After evaluation and analysis, the solar panel wing power generation performance is normal. . This is the first time that Chinese astronauts have completed the maintenance task of extravehicular facilities of an orbiting spacecraft. During the extravehicular activities, the astronauts also inspected the status of the space station cabin.
According to plan, a large number of space science experiments and technology tests will also be carried out during the Shenzhou 17 manned mission.
[The crew of Shenzhou 17 will make its second exit from the spacecraft in the near future] According to the China Manned Space Engineering Office, since the successful completion of the first spacecraft activity on December 21, 2023, the astronaut crew of Shenzhou 17 has completed On-orbit training for robotic arm operation, full-system pressure emergency drills, payload evacuation, experimental cabinet debugging and preparation for the second evacuation activity, space life science and human body research, space microgravity physics, space astronomy and earth science, space science experimental projects such as new technologies and applications are advancing steadily.
At present, the crew of the Shenzhou 17th astronauts are in good condition, the space station assembly is operating stably, and they have the conditions to carry out extravehicular activities…
On the 29th February 2024 in CNSA _China National Space Administration -China – People’s Republic of China 2103 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng- Long March 3B Carrier Rocket carrying the satellite Internet high-orbit satellite 01 was launched from Station 2 of the Xichang Satellite Launch Center, sending the satellite into the geosynchronous transfer orbit.
Satellite Internet High Orbit Satellite 01 is a large high orbit communication satellite developed by the Communications and Navigation Department of the Fifth Academy of China Aerospace Science and Technology Corporation.
Chang Zheng- Long March 3B Carrier Rocket is a medium-sized liquid bundled launch vehicle developed by the First Academy of China Aerospace Science and Technology Corporation. It adopts a three-stage and a half configuration, consisting of a core first stage, a core second stage, a core third stage and four boosters. Except for the main power of the core third stage, which uses liquid hydrogen/liquid oxygen propellant, the main power of the other stages all uses dinitrogen tetroxide/uniform dimethyl hydrazine propellant. Currently, the carrier rocket is in use in the enhanced type (CZ-3B/E) modified to type 2, type 3, type 3Z, and type 5. Among them, type 3 (CZ-3B/G3) is the model with the strongest carrying capacity. , 56.326 meters long, with a maximum core diameter of 3.35 meters, a fairing diameter of 4 meters, a take-off mass of 458.97 tons, and a standard geosynchronous transfer orbit capacity of 5.55 tons.
This rocket is the second rocket in the Chang Zheng- Long March 3B Carrier Rocket series of rocket reliability and carrying capacity improvement projects. It has made five technical improvements, including improving operational convenience and changing engine technology to improve production efficiency. In 2024, the Changsha triple-A series rockets will usher in a new round of high-density launches.
This launch is the first launch of the ” Chang Zheng- Long March 3B Carrier Rocket in 2024, the third orbital space launch of the Xichang Satellite Launch Center Xichang Launch Site, China’s 10th launch, and the world’s 40th launch. This launch is the 94th launch of the “Chang 3B” rocket in total. Since the 68th launch of the ” Chang Zheng- Long March 3B Carrier Rocket ” rocket on June 23, 2020 (Yao 68/”Beidou 3″ GEO-3), The Rockets have won 27 consecutive games. At the same time, this launch is the 510th launch of the “Long March” series of rockets. Since the successful first flight of the ” Chang Zheng- Long March 3B Carrier Rocket ” (the 331st launch of the “Long March” series of rockets), the “Long March” series of rockets have achieved 180 consecutive victories!
