KevinJamesNg

Traveling through time and space & Doing timey wimy stuff.

On a very clear Sunday day pasting towards Lunchtime with CNSA – China National Space Administration Xichang Satellite launch Center – Sichuan province- China- People’s Republic of China at 11:58 Morning almost midday Hong Kong – Beijing time  today, China successfully put the Gaofen 14 satellite into the scheduled orbit using the Long March 3B- Chang Zheng 3B carrier rocket at the Xichang Satellite Launch Center. The Gaofen 14 satellite can efficiently obtain high-precision stereo images around the world, measure large-scale digital topographic maps, and produce digital elevation models, digital surface models, and digital orthographic  photography  mapping imaging ……

The Chang San B modified rocket launched this time, under the unified configuration of the Chang San A series rockets, uses a 4.2-meter long fairing with the same diameter compared to the Chang San B/Expedition 1 rocket. The total length of the rocket in this state is about It is 58 meters, and its take-off mass is about 456 tons. In order to complete the new launch mission of the Long Three A series of rockets and take into account subsequent development, the Long Three B improved rocket adopts 12 first flight first uses such as Omni-directional take-off roll transformation and launching based on control system information. Technology has further improved the high adaptability level of rockets and made new explorations towards the development and evolution of future smart rockets.

Specifically, the rocket is equipped with brand new flight control software. The control system adopts a full-range quaternion control scheme, iterative guidance control, first-level transverse guidance control, two-way wind compensation + active load shedding control technology, and all-round take-off Rolling and other five technologies, combined with intelligent algorithms-attitude control engine online fault identification and control reconstruction, will provide a “packaged” solution for launch vehicle flight control.


It is understood that the new flight control software adds horizontal guidance control to the first stage of the rocket, which can improve the precision control ability of the booster and the first stage of the core. For example, after the booster is separated, it may be affected by the wind and deviate from the pre-designed path. The new software can add guidance to the booster and guide it to fly back into the fall zone…

 During the tracking Xi’an Satellite Measurement and Control Center Menghai Measurement and Control Station successfully completed the Gaofen 14 satellite measurement and control mission…… “Menghai found the target!” At 11:58 on December 6, 2020,  was carried by Long March 3B at Xichang Satellite Launch Center The rocket successfully sent the Gaofen 14 satellite into its intended orbit. When the rocket enters the measurement and control arc of the Menghai measurement and control station, the Menghai measurement and control station finds and captures the target in time. The tracking is stable throughout the process, the data acquisition is complete and effective, and the measurement and control data and various information exchanges are accurately sent to the Xi’an center, successfully completing the initiative Section related to measurement and control tasks.

The Gaofen 14 satellite is a high-orbit optical remote sensing satellite, which is mainly used in fields such as land surveys and crop yield estimation. This mission is the 349th flight of the Long March series of carrier rockets…. The Gaofen 14 is an optical remote sensing satellite with a ground pixel resolution of up to sub-meter level. It is mainly used in territorial census, urban planning, land right confirmation, road network design, crop yield estimation, and disaster prevention and mitigation. , Which can provide information guarantee for the construction of the “Belt and Road Initiative.”

The Gaofen14  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..

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