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Geoscientific Instrumentation, Methods and Data Systems An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gi-2018-35
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-2018-35
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 13 Mar 2019

Research article | 13 Mar 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Instrumentation, Methods and Data Systems (GI).

Instrument observation strategy of new generation three-axis stabilized geostationary meteorological satellite of China

Jian Shang1, Pan Huang2, Huizhi Yang2, Chengbao Liu1, Jing Wang1, Lei Zhao1, Shengxiong Zhou3, Xiaodong Chen2, Lei Yang1, and Zhiqing Zhang1 Jian Shang et al.
  • 1National Satellite Meteorological Center, China Meteorological Administration, Beijing, 100081, China
  • 2Beijing Institute of Electrical and Mechanical Engineering, Beijing, 100074, China
  • 3Southwest Electronics and Telecommunication Technology Research Institute, Chengdu, 610000, China

Abstract. Fengyun-4 (FY-4) satellite series is the new generation of geostationary meteorological satellite of China. Thenewly adopted three-axis stabilized attitude control platform can increase observation efficiency and flexibility, while bringing great challenge to image navigation as well as integrated observation mode design. Considering the requirements of the earth observation, navigation and calibration besides observation flexibility, instrument observation strategies are proposed, including the earth, the moon, stars, cold space, blackbody, diffuser observations, on which the instruments' in-orbit daily observations must be based. The most complicated part is star observation strategy, while navigation precision is dependent on in-orbit star observations. Flexible, effective, stable and automatic star observation strategy directly influences obtaining star data and navigation precision. According to the requirement of navigation, two specific star observation strategies for the two main instruments onboard FY-4 were proposed to be used in the operational ground system. The strategies have been successfully used in FY-4 in-orbit test for more than a year. Both the simulation results and in-orbit application results are given, including instrument observation strategies, star observation strategies and moon tasks, to demonstrate the validity of the proposed observation strategies, which lay important foundations for the instruments' daily operation.

Jian Shang et al.
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Short summary
Towards the complex observation requirements of Fengyun-4 (FY-4) satellite, the new generation of geostationary meteorological satellite of China, instrument observation strategies are proposed, on which the instruments' in orbit daily observations must be based. The strategies have been successfully used in FY-4A in-orbit test for more than a year. Both the simulation results and in-orbit application results are given to demonstrate the validity of the strategies.
Towards the complex observation requirements of Fengyun-4 (FY-4) satellite, the new generation...
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