Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites

Hongrui Wang; Yupeng Wang; Xin Ye; Kai Wang; Dongjun Yang; Wei Fang; Huiduan Li

doi:10.1117/12.2068525

19 November 2014 Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites

Hongrui Wang, Yupeng Wang, Xin Ye, Kai Wang, Dongjun Yang, Wei Fang, Huiduan Li

Author Affiliations +

Proceedings Volume 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III; 926404 (2014) https://doi.org/10.1117/12.2068525
Event: SPIE Asia-Pacific Remote Sensing, 2014, Beijing, China

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.

Citation Download Citation

Hongrui Wang, Yupeng Wang, Xin Ye, Kai Wang, Dongjun Yang, Wei Fang, and Huiduan Li "Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites", Proc. SPIE 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, 926404 (19 November 2014); https://doi.org/10.1117/12.2068525

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