On the 21ST April 2024 in CNSA _China National Space Administration -China – People’s Republic of China 0745 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng Long March 2-D carrier rocket successfully launched the Yaogan 42-02 satellite at the Xichang Satellite Launch Center Star, the launch mission was a complete success. The star arrows are all developed by the Shanghai Aerospace Technology Research Institute of China Aerospace Science and Technology Corporation
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The Chang Zheng Long March 2-D carrier rocket (CZ-2D) rocket is about 41 meters long (equipped with a standard fairing diameter of 3.35 meters), with a diameter of 3.35 meters for the first and second stages, a take-off mass of 250 tons, a take-off thrust of 302 tons, and a low-Earth orbit (LEO) ) transport capacity 4 tons. This rocket is equipped with a fairing with a diameter of 3.35 meters and adopts a new flight control algorithm, which further improves the reliability of the rocket flight.
The Chang Zheng – Long March 2D Carrier Rocket launch vehicle is a normal-temperature liquid two-stage launch vehicle with a take-off thrust of about 300 tons and a corresponding capacity of 1.3 tons in a 700-kilometer sun-synchronous circular orbit. It has single satellites and satellites in different orbits at the three satellite launch centers of Jiuquan, Taiyuan, and Xichang. Multi-satellite launch capability.
The Yaogan 42-02 satellite at the Xichang Satellite Launch Center Star, the launch mission was a complete success. The star arrows are all developed by the Shanghai Aerospace Technology Research Institute of China Aerospace Science and Technology Corporation.
Since the successful first flight from the Jiuquan Satellite Launch Center on August 9, 1992, the ” Chang Zheng Long March 2-D carrier rocket ” rocket has been successfully launched 89 times, continuing to set a record for consecutive successful launches of a single-type launch vehicle in China.
This launch is the 4th launch of the ” Chang Zheng Long March 2-D carrier rocket ” in 2024, the 6th launch from the Xichang Launch Site, the 17th launch in China, and the 76th launch in the world.
深蓝航天 Deep Blue Limited – Deep Blue AerospaceLandspace One of sixty Chinese private space Carrier Rocket Companies in China-People’s Republic of China… As many of sixty plus Private Rocket Deep Blue Aerospace Co., Ltd. was established in 2017. The company is mainly a high-tech aerospace enterprise that focuses on the direction of liquid recovery and reusable launch vehicles and provides users with commercial launch services. Deep Blue Aerospace Co., Ltd. is headquartered in Nantong City, Jiangsu Province. At the same time, the company has rocket general and liquid engine R&D centers in Yizhuang, Beijing and Xi’an, Shaanxi, respectively, and a rocket power system test base in Tongchuan, Shaanxi…..
Recently on the Month of April 2024, Blue Arrow Aerospace successfully completed the engine test run assessment of the largest niobium alloy nozzle in China at the Huzhou Hot Test Center. After the test, the product structure and surface coating were intact. The engine worked for 380 seconds under rated working conditions and high working conditions. The structural reliability, thermal protection reliability, and process reliability of the niobium alloy nozzle passed the assessment! This niobium alloy nozzle has a diameter of about 1.6m and a height of about 1.3m. The size is much larger than the existing domestic products of the same type. It is equipped with the Tianque 15A (TQ-15A) vacuum liquid oxygen methane engine with the highest thrust in China.
The test run of the largest niobium alloy nozzle in China successfully welcomed the flight of the Suzaku rocket
🔷 Recently, Blue Arrow Aerospace successfully completed the engine test run assessment of the largest niobium alloy nozzle in the country at the Huzhou Thermal Test Center. After the test, the product structure and surface coating were intact. The engine worked for 380 seconds under rated working conditions and high working conditions. The structural reliability, thermal protection reliability, and process reliability of the niobium alloy nozzle passed the assessment!
🔷This niobium alloy nozzle has a diameter of about 1.6m and a height of about 1.3m. The size is much larger than the existing domestic products of the same type. It is equipped with the Tianque 15A (TQ-15A), the vacuum liquid oxygen methane engine with the highest thrust in China, with a vacuum thrust of 836kN. , vacuum specific impulse 3320m/s.
🔷The Blue Arrow aerospace engine team has begun to develop a niobium alloy nozzle with a larger area ratio. The outlet diameter will reach 2.5m, which will continue to improve the vacuum specific impulse of the rocket’s secondary main engine.
[China and Thailand will carry out aerospace cooperation such as an international lunar scientific research station]
On April 5, the China National Space Administration and the Thai Ministry of Higher Education, Research and Innovation jointly signed a memorandum of understanding on cooperation in the exploration and peaceful use of outer space and international lunar scientific research. Memorandum of Understanding on Cooperation.
Princess Sirindhorn of Thailand attended and witnessed the signing. Zhang Kejian, Administrator of the China National Space Administration, delivered a welcome speech. Supramas, Minister of the Ministry of Higher Education of Thailand, attended the event. Xu Zhanbin, Deputy Administrator of the China National Space Administration, and Peng Shu, Permanent Secretary of the Ministry of Higher Education of Thailand, signed the cooperation agreement on behalf of both parties. According to the agreement, Li Guoping, chief engineer of China National Space Administration, participated in the event. According to the Memorandum of Understanding, China and Thailand will establish a joint committee and a joint working group to plan and implement joint space projects, scientific exchange projects and personnel training plans, exchange data and information, and joint Organize symposiums and scientific workshops to strengthen cooperation.
[Princess Sirindhorn of Thailand visits the Deep Space Exploration Laboratory ] On April 5, 2024, Princess Maha Chakri Sirindhorn of Thailand visited the Deep Space Exploration Laboratory. Zhang Kejian, Administrator of the China National Space Administration, Xu Zhanbin, Deputy Administrator, Li Guoping, Chief Engineer, Wu Yanhua, Chief Designer of Major Deep Space Exploration Projects, Academician Wu Weiren, Director of the Laboratory, and Guan Feng, Executive Director, attended the event.
Princess Sirindhorn visited the laboratory hall, inspected with great interest the lunar soil samples collected by the Chang’e-5 mission, the Yutu lunar rover, the Tianwen-1 Mars landing platform and other exhibits, and listened in detail to the major issues of China’s deep space exploration. Briefing on the special project tasks, carefully observed the demonstration of the overall collaborative design simulation platform system of the deep space exploration project, and attended and witnessed the signing ceremony of the letter of intent for cooperation between the China National Space Administration and the Ministry of Higher Education, Research and Innovation of Thailand on the International Lunar Research Station.
Princess Sirindhorn highly affirmed my country’s outstanding achievements in the field of deep space exploration in recent years, and expressed that she would strongly support China and Thailand to carry out extensive cooperation in the field of deep space exploration. Zhang Kejian presented Princess Sirindhorn with a commemorative album of her visit to China’s aerospace industry. Wu Yanhua presented Princess Sirindhorn with an album introducing China’s deep space exploration. Princess Sirindhorn signed the name of the laboratory as a souvenir.
The two parties will focus on the demonstration, project implementation, operation and application of the international lunar scientific research station, organize expert teams to conduct research from the three aspects of science, engineering and international cooperation, and form a cooperation plan. At the same time, other countries, international organizations, scientific research institutes, Universities, industrial entities and scientists join the international lunar scientific research station program and benefit from joint free space exploration activities
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 morning of 17th March 2024, Sunday Hong Kong SAR- Beijing Time at CNSA – China National Space Administration – Wenchang Space Craft launch Center it was the Rollout of the newly assembled Chang Zheng-Long March 8 Yao 3 Carrier Rocket towards its Launch complex station 201.. Hainan Province, China, People’s Republic of China.
Queqiao-2 relay satellite and the Long March-8 Yao-3 carrier rocket completed their technology at the Wenchang Space Launch Site in China. In order to carry out related work in the area, the star-rocket assembly was transported vertically to the launch area, and the launch is planned to be carried out in the near future. After the Queqiao-2 relay satellite and the Long March-8 Yao-3 carrier rocket arrived at the launch site in February, they have successively completed various preparations such as final assembly and testing. At 8:10 on the 17th, the movable launch platform carrying the Long March 8 Yao-3 carrier rocket slowly drove out of the launch site’s vertical test plant and safely transferred the satellite-rocket assembly to the launch area. Subsequently, after completing the rocket function inspection, joint testing work and propellant filling, the launch will be carried out at an appropriate time.
On the Sunset of 14th Febuary Hour Hong- Kong SAR – Beijing time CNSA –China National Space Administration the combination of the Chang Zheng -Long March 8 Yao 3 carrier rocket has been shipped towards Wenchang Spacecraft Launch Center, Hainan Province, China, People’s Republic of China. in the during the National Holidays of celebrating the Year of the Dragon of the Chinese Lunar New Year, Spring Festival..
On the 22 February 2024 Day the components of the Chang Zheng – Long March 8 Yao 3 Carrier Rocket have arrived Wenchang Space Launch Site, Hainan Province, China, People’s Republic of China. The rocket is used to carry out the launch mission of the Chang’e-7 relay star (Queqiao 2) in the fourth phase of the lunar exploration project. After arriving, various final assembly tests will be carried out at the launch site. As the main medium-sized rocket of the new generation, the Long March 8 launch vehicle uses green and environmentally friendly liquid propellant and is developed according to the idea of modular combination. It will fly for the first time in 2020, filling the gap in my country’s 3-5 tons sun-synchronous orbit carrying capacity.
At present, the launch site facilities are in good condition, and preparations for the relay At present, the launch site facilities are in good condition, and preparations for the relay satellite mission are being carried out in an orderly manner, and will be launched at an appropriate time in the first half of this year….
After arriving, various final assembly tests will be carried out at the launch site. As the main medium-sized rocket of the new generation, the Long March 8 launch vehicle uses green and environmentally friendly liquid propellant and is developed according to the idea of modular combination. It will fly for the first time in 2020, filling the gap in my country’s 3-5 tons sun-synchronous orbit carrying capacity. At present, the launch site facilities are in good condition, and preparations for the relay satellite mission are being carried out in an orderly manner, and will be launched at an appropriate time in the first half of this year.
