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Proceedings Paper

Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites
Author(s): Hongrui Wang; Yupeng Wang; Xin Ye; Kai Wang; Dongjun Yang; Wei Fang; Huiduan Li
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Paper Abstract

Total Solar Irradiance (TSI) has been recorded daily by Total Solar Irradiance Monitors (TSIM) with overlapping measurements on FY-3 (Feng Yun-3) series satellites since 2008. Instrument descriptions, operation in space and flight performance of three TSIMs are presented in this paper. TSI is measured by electrical substitution radiometers integrated in TSIM, with traceability to SI. TSIM/FY-3A and TSIM/FY-3B share nearly the same design. Since TSIM/FY-3A and TSIM/FY-3B have no pointing system, the Sun is only observed when the Sunlight sweeps TSIM’s field-of-view and TSI measurements are influenced inevitably by solar pointing errors. TSIM/FY-3C, a radiometer package was constructed with a pointing system for solar tracking in order to achieve accurate solar pointing. TSIM/FY-3C was sent into orbit in September 2013 onboard FY-3C satellite. Daily TSI measurements have been performed by TSIM/FY-3C with autonomous accurate solar tracking for 1 year. TSIM/FY-3C is in a good instrument health according to its on-orbit data.

Paper Details

Date Published: 19 November 2014
PDF: 9 pages
Proc. SPIE 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, 926404 (19 November 2014); doi: 10.1117/12.2068525
Show Author Affiliations
Hongrui Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yupeng Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Xin Ye, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Kai Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Dongjun Yang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Wei Fang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Huiduan Li, Chuxiong Normal Univ. (China)


Published in SPIE Proceedings Vol. 9264:
Earth Observing Missions and Sensors: Development, Implementation, and Characterization III
Xiaoxiong Xiong; Haruhisa Shimoda, Editor(s)

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