At 1101Hours Morning Hong Kong Beijing Time on a very clear 7th September 2021 Tuesday 2021, China- People’s Republic of China- CNSA –China National Space Administration Successfully launched the Long March-Chang Zheng 4C carrier rocket at the Taiyuan Satellite Launch Center Shanxi Province China successfully launched Long March – Chang Zheng 4C carrier rocket at the Taiyuan Satellite Launch Center to successfully launched the Gaofen-5 02 satellites into orbit…. Making this launch into this mission is the 387th flight of the International Iconic Chang Zheng- Long March series of carrier rockets…..
The Advancements in Chang Zheng Long March 4C Carrier Rocket in which there’s been many advancements and improvements is the first to install relay equipment, greatly extending the telemetry time] In this mission, the rocket has optimized the launch trajectory in accordance with the safety requirements of the landing zone, and each sub-system adopts the latest state that has been verified by the flight; the Chang Si C rocket It is the first time to carry a relay user terminal system on the third sub-level. The relay satellite is used to complete the rocket’s active segment information transmission, so as to realize the reception of the rocket’s full range of telemetry signals. Compared with the previous telemetry data transmission method, the relay user terminal system is not affected by ground telemetry. The geographical location of the receiving station can greatly extend the signal transmission time of the rocket. Therefore, the rocket has the advantages of not being restricted by the ground telemetry receiving station and flexible design of the launch orbit; the satellite fairing adopts enhanced rainproof measures to cope with the rainy season conditions in Taiyuan, to ensure that the rocket is launched accurately within the scheduled window….
For the Taiyuan Satellite Launch Center, September 7 is an auspicious day…..On September 7, 1988, the Long March 4 carrier rocket made its first flight here, launching the experimental weather satellite “Fengyun 1″ (also the first meteorological satellite). The People’s Daily announced the next day that the launch site was marked as ” The name “Taiyuan Satellite Launch Center” was opened…… Also On September 7 last year, the Long March 4B carrier rocket successfully launched the Gaofen 11 02 satellite.
The two Gaofen 5 series Remote Earth Sciences Sensing Satellite also the Chang Zheng –Long March 4B were all developed by the Eighth Academy of China Aerospace Science and Technology Corporation. This launch is the 79th launch of the Long March 4B series carrier rocket and the 10th launch this year. It is the 142nd launch of the Long March series of carrier rockets developed by the Eighth Academy of Sciences and the 387th launch of the Long March series of carrier rockets.
The hyperspectral observation satellite launched this time can be used for inland water bodies, land surface ecological environment, altered minerals, crops, forest vegetation and other ground objects, as well as air pollution gases, greenhouse gases, PM2.5 and other environmental and meteorological targets. The global, long-term, quantitative and comprehensive observation of the elements effectively enhances my country’s comprehensive hyperspectral observation capabilities and increases the localization rate of hyperspectral observation data to more than 70%.
According to the plan, in less than 4 months, the Chang 4 series rockets will perform several launch missions. Zhang Baizheng, the chief designer of the overall structure of the Long Four C rocket, revealed that the number of launches of the Long Four series of rockets will still maintain this frequency next year.
[ Gaofen GF-5 02 full-spectrum spectral imager developed by 508] As one of the main payloads, the full-spectrum spectral imager is a visible-infrared integrated push-broom imaging space remote sensing camera developed by 508. The imager integrates three imaging channels of visible, short and medium wave, and long wave, which can simultaneously obtain remote sensing images in 12 spectrum bands of visible, near-infrared, short wave, medium wave, long wave, and very long wave. The long-wave infrared detector is a key component of the long-wave imaging channel. It is responsible for converting the received optical signal into an electrical signal, and generating the image we see through the signal processing circuit, the satellite data transmission system and the ground system data processing. The photosensitive surface size of the long-wave infrared detector is only 60mm*12mm. It is hard to imagine that there are nearly 20,000 tiny pixels in such a small chip. Through the optimization and improvement of the preparation process of the very long wave detector chip, the sensitivity of the long wave infrared detector has been increased by 3 times, the gray level of the image has been increased by 3.5 times, and the image quality has been significantly improved compared with the predecessors on the Gaofen-5 satellite .
As a typical representative of China’s visible-infrared common optical path push-broom imaging space optical remote sensor, the full-spectrum spectral imager is the load with the widest spectral range among high-resolution multi-spectral remote sensing cameras in China. In addition to the above advantages, it also has Many “artifacts”: it has 3 imaging channels and 12 spectrum bands, which can be imaged day and night; its long-wave infrared spectrum has the highest spatial resolution of 40 meters for international civil satellites; it passes high-sensitivity detectors and high-precision focal planes Temperature control, high-precision radiation calibration and other methods provide support data for quantitative applications of users, and can accurately and quantitatively obtain surface temperature, water surface temperature, temperature difference range, thermal pollution discharge outlet distribution, mineral information distribution, and vegetation coverage from the image. More detailed information such as the degree of drought and the degree of drought.
The Gaofen5 series Remote Sensing Earth Sciences Satellite manufacturer is CAST – China Academy of Space Technology also in collaboration with its associate agency with CHEOS- China High Resolution Earth Observation System in which is design Built on a CAST 2000 Design Heritage Earth Sciences, in which is design for Translating Gaofen is High Resolution, also known as CHEOS- China High Resolution Earth Observation System, in which provisions in the real time observational data analysis of with high resolution multi spectra equipment imaging system in analysis for assessing environmental disaster warning, emergency response also for the protection for ecological, also providing support for infrastructure construction, transportation for various purpose of the Belt And Road initiative … one of many specifications of the Gaofen 10 Earth Sciences satellite is The high-resolution satellite is a large-scale remote sensing satellite system for the national science and technology major special arrangement of the microwave remote sensing satellite, the ground pixel resolution is up to sub-meter …
Images and visuals are from Weibo also their respectives..