Radar constellation _ radar constellation observation

The Gaofen-3 03 satellite was successfully put into orbit, and the series of satellites realized networking operation.

Gaofen-3 03 satellite was successfully put into orbit, and this series of satellites realized networking operation. Gaofen-3 03 satellite was developed by the Fifth Academy of Aerospace Science and Technology Group. Gaofen-3 series satellites are evenly distributed on the same orbital plane, and Gaofen-3 03 satellite successfully entered orbit, realizing networking operation.

Gaofen-3 03 satellite was successfully put into orbit, and this series of satellites realized networking operation 1. It was learned from China National Space Administration that at 7: 47 on April 7th, Beijing time, China successfully launched Goffin-3 03 from Jiuquan Satellite Launch Center. After the satellite is in orbit, it will be networked with the on-orbit Gaofen-3 (also known as Gaofen-3 0 1) and Gaofen-3 02 to form a land-sea radar satellite constellation.

Gaofen-3 03 is an operational satellite in the long-term development plan of national civil space infrastructure (20 15-2025). The technical status of the satellite is the same as that of Gao Fen -3 02, and its main load is C-band synthetic aperture radar.

The satellite has fully inherited the mature technical scheme of Gaofen-3, achieved the resolution of 1m and revisited 1 day, which will enhance the land and sea observation capability of China radar satellite and meet the application requirements of marine rights and interests maintenance, marine disaster prevention and mitigation, marine dynamic environment monitoring, marine scientific research and mitigation, land, environmental protection, water conservancy, agriculture and meteorology.

At 7: 47 on April 7th, Beijing time, China successfully launched Goffin III 03 from Jiuquan Satellite Launch Center with the Long March IV C carrier rocket. The satellite successfully entered the scheduled orbit and the launch mission was a complete success. wang jiangbo

Gaofen-3 satellite was successfully launched on August 20 16 10. It is the first large-scale low-orbit remote sensing satellite with long life design in China. 2021165438+1On October 23rd, Gaofen-3 02 satellite was successfully launched, and it realized binary operation with Gaofen-3 satellite.

The Long March IV C carrier rocket is a normal temperature three-stage liquid carrier rocket developed by the Eighth Institute of China Aerospace Science and Technology Corporation. It has the ability to launch various types of satellites with different orbital requirements, and can launch a single satellite or multiple satellites with one arrow. Its solar synchronous circular orbit carrying capacity can reach 3 tons.

This mission is the 4th14th launch of the Long March series of launch vehicles.

The Gaofen-3 03 satellite was successfully put into orbit, and the series of satellites realized networking operation. At 7: 47 today, China successfully launched the Gaofen-3 03 satellite with the Long March 4 C carrier rocket at Jiuquan Satellite Launch Center. The satellite successfully entered the scheduled orbit and the launch mission was a complete success. The satellite will be networked with the on-orbit Gaofen-3 0 1 and Gaofen-3 02 satellites to form a land-sea radar satellite constellation, which can meet the application requirements of marine disaster prevention and mitigation, marine dynamic environment monitoring and mitigation, land, environmental protection, water conservancy, agriculture, meteorology and so on.

Gaofen-3 03 was developed by the Fifth Academy of Aerospace Science and Technology Group. According to the introduction of the satellite development team, the Gaofen-3 series satellites are evenly distributed on the same orbital plane and orbit the earth once every 99 minutes, so as to increase the number of satellite observations, improve the revisiting ability and global coverage, and further enhance the satellite's support for marine information services and disaster response.

Samsung's network operation can give full play to the advantages of multi-satellite cooperative observation, reducing the average revisit time from 0.6 days for a single satellite to 0.2 days for Samsung, shortening the average revisit period from 15 hours for a single satellite to 5 hours for Samsung, and imaging an area five times a day.

At the same time, the large-area imaging ability of the ocean has also been greatly improved. On the basis of the high score of 0 1 satellite, which can continuously image nearly 1 hour with a single boot, Samsung can photograph nearly one-fifth of the world's oceans with one imaging, and it will become easier to take a "family portrait" of the earth. At the same time, the formation flight of three satellites can effectively carry out ground deformation interferometry and monitor ground subsidence, earthquakes and landslides.

Gaofen-3 0 1 satellite was successfully launched in 20 16, and has started emergency observation service for more than 900 times in Zhengzhou rainstorm, Sri Lanka flood, Brazil forest fire and other emergencies, and distributed more than 2,000 scenes of data. By March 2022, the 0 1 satellite of Gaofen-3 had achieved an effective global coverage area of 348.2 million square kilometers, and distributed more than10.95 million views to users in various industries.

The Gaofen-3 03 satellite was successfully put into orbit, and the series of satellites realized networking operation. At 7: 47 on April 7, 2022, the Long March 4 C 38 carrier rocket was launched at Jiuquan Satellite Launch Center, successfully putting the Gaofen 3 03 star into the scheduled orbit, and the launch mission was a complete success.

The Long March IV C carrier rocket carrying out this launch mission is a normal temperature liquid three-stage carrier rocket developed by the Eighth Institute of China Aerospace Science and Technology Corporation, with excellent performance and wide application. According to the different types of satellites, the Long March 4 rocket can adopt a flexible launch scheme and has the ability to launch various types of satellites with different orbital requirements. It can launch one arrow, one satellite or more satellites, and the carrying capacity of sun-synchronous circular orbit can reach 3 tons (the orbit height is 700 kilometers).

This task is the decisive battle of "redundancy promotion 1" state. After this milestone, the aircraft entered the "Redundancy Improvement 2" state in an all-round way, and the state was upgraded uniformly. At the same time, the comprehensive test launch control system, which has been in service for 8 years, successfully ended its mission. The system adopts "integrated" metering transmission mode, which provides unified power supply and distribution, unified control and unified testing for all electrical systems of the rocket, and realizes remote independent metering transmission and automatic interpretation and comparison of test data.

Since the equipment was deployed in Jiuquan Satellite Launch Center in May, 20 14, it has completed the launching task of Chang-4 17 rocket, achieved successful development and successfully completed its historical mission. In the future, the newly developed unified test and launch control system will be fully networked in the assembly plant and various launch sites, compatible with Changsi and Changerding models, and serve the test and launch work of subsequent missions.

The new research system has made its debut at the launch site, and has the new highlights of "eight modernizations": system generalization, front-end unmanned, process automation, intelligent interpretation, system miniaturization, localization of weapons and arrows, software platformization and server clustering, which will empower and upgrade the follow-up tasks.

This launch is the fourth launch mission of Changsi Model in 2022. In order to improve the reliability of the rocket, the rocket of the invention has been improved from the aspects of prohibition and restriction technology and the sealing reliability of the pressurized conveying system. In view of the state switching of the ground comprehensive test and launch control equipment, sufficient test and evaluation were carried out, and spare parts were prepared to ensure the smooth test and launch of the mission launch site.

As the last phase of "Redundancy Improvement 1" status, compared with the first three phases of this year's "Redundancy Improvement 2" status task, the test team and the launch site have conducted in-depth disclosure and discussion on system state switching, test details, document confirmation and other aspects to ensure that the current task is "correct state switching, clear process control and one-step operation".

In this task, the professional survey and development team of the Eighth Academy undertakes the survey and development task of the launch site, and continuously strengthens the quality confirmation and refined process control of the launch site through management measures such as "confirmation planning", "digital management system", "Nissin regular meeting" and "closed-loop implementation of to-do items", and builds a quality management system of "everyone pays attention to quality and environmental control quality"; At the same time, the digital management system is constantly upgraded, which further improves the completeness, meticulousness and efficiency of the work.

The launch of the Gaofen-3 03 satellite was developed by the Fifth Academy of China Aerospace Science and Technology Corporation, aiming to meet the needs of users in marine, emergency, land, geology, environmental protection, water conservancy, agriculture, meteorology and other industries for quick revisiting land and ocean observations.

This launch is the 89th launch of the Long March 4 series of launch vehicles, the156th launch of the Long March series of launch vehicles developed by the Eighth Academy of Engineering, and the 4th14th launch of the Long March series of launch vehicles.