Total Solar Irradiance monitored by &nbsp;DARA/JTSIM : first light observations

Jean-Philippe Montillet; Wolfgang Finsterle; Margit Haberreiter; Werner Schmutz; Daniel Pfiffner; Silvio Koller; Manfred Gyo; Wei Fang; Xin Ye; Dongjun Yang; Duo Wu

doi:https://doi.org/10.5194/egusphere-egu22-616

[Back] [Session CL2.1]

EGU22-616

https://doi.org/10.5194/egusphere-egu22-616

EGU General Assembly 2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Total Solar Irradiance monitored by DARA/JTSIM : first light observations

Jean-Philippe Montillet¹, Wolfgang Finsterle¹, Margit Haberreiter¹, Werner Schmutz¹, Daniel Pfiffner¹, Silvio Koller¹, Manfred Gyo¹, Wei Fang², Xin Ye², Dongjun Yang², and Duo Wu²

Jean-Philippe Montillet et al.

¹PMOD/WRC, Dorfstrasse 33, 7260 Davos Dorf, Switzerland
²Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

The Joint Total Solar Irradiance Monitor (JTSIM) onboard the Fengyun-3E spacecraft has been launched successfully the 4^th of July 2021. It aims at measuring the Total Solar Irradiance (TSI) in orbit. The instruments on the Fengyun-3E/JTSIM include the Digital Absolute Radiometer (DARA) from the Physikalisch Meteorologisches Observatorium, Davos and World Radiation Center (PMOD/WRC) and the Solar Irradiance Absolute Radiometer (SIAR) from the Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences (CIOMP/CAS). The JTSIM experiment will use the two different types of TSI radiometers to track the stability of TSI measurements, and to better understand instrumental degradation in space. We will present results from this new experiment at first light. We will compare the measurements from DARA and SIAR over the first few months and relate them to other active missions (SOHO/VIRGO/PMO6v, SORCE/TSIS).

How to cite: Montillet, J.-P., Finsterle, W., Haberreiter, M., Schmutz, W., Pfiffner, D., Koller, S., Gyo, M., Fang, W., Ye, X., Yang, D., and Wu, D.: Total Solar Irradiance monitored by DARA/JTSIM : first light observations, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-616, https://doi.org/10.5194/egusphere-egu22-616, 2022.