EGU25-7633, updated on 14 Mar 2025
https://doi.org/10.5194/egusphere-egu25-7633
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Oral | Monday, 28 Apr, 16:15–16:25 (CEST)
 
Room 0.94/95
The Ultraviolet Imager (UVI) for SMILE mission: Instrument, Calibration, and Products
Fei He1,2, Yong-Mei Wang3, Xiao-Xin Zhang4, Xiao-Hong Liu3, Guo-Jun Du5, Jing-Hua Mao3, Peng-Da Li3, Wei-Peng Huang3, Tian-Fang Wang3, Jiu Liu3, Shui Yu3, Zi-Yue Wang3, Jing Li3, Lei Li3, Lei Dai3, Sylvain Vey6, Rene Berlich6, Colin Forsyth7, Christophe Philippe Escoubet6, and Chi Wang3
Fei He et al.
  • 1Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China (hefei@mail.iggcas.ac.cn)
  • 2College of Earth and Planetary Sciences, University of Chinese Academy of Sciences
  • 3National Space Science Center, Chinese Academy of Sciences
  • 4National Center for Space Weather, China Meteorological Administration
  • 5Beijing Institute of Space Mechanics & Electricity
  • 6European Space Research and Technology Centre, European Space Agency
  • 7Mullard Space Science Laboratory, University College London

The aurora is the optical manifestation of the global magnetospheric dynamics. Optical imaging of aurora provide insight into the large-scale convections and wave-particle interactions in the magnetosphere, thus provide important information on the mass and energy flow in the solar wind-magnetosphere coupling system. The Ultraviolet Imager (UVI) onboard the Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) satellite will image the entire auroral oval in N2 Lyman-Birge-Hopfield (LBH) band (160–180 nm) while effectively mitigating contamination from dayglow, achieving a spatial resolution of approximately 100 km or better. The SMILE spacecraft operates in a highly eccentric orbit characterized by an orbital period of approximately 50 hours. This orbit configuration is particularly well-suited for long-term continuous monitoring of northern auroras. Such insights will significantly enhance our research into energy deposition processes occurring within the ionosphere and upper atmosphere during solar wind-magnetosphere interactions. Here, we will introduce in detail the instrument, laboratory calibrations, in-flight calibration plan, and data products of SMILE UVI.

How to cite: He, F., Wang, Y.-M., Zhang, X.-X., Liu, X.-H., Du, G.-J., Mao, J.-H., Li, P.-D., Huang, W.-P., Wang, T.-F., Liu, J., Yu, S., Wang, Z.-Y., Li, J., Li, L., Dai, L., Vey, S., Berlich, R., Forsyth, C., Escoubet, C. P., and Wang, C.: The Ultraviolet Imager (UVI) for SMILE mission: Instrument, Calibration, and Products, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-7633, https://doi.org/10.5194/egusphere-egu25-7633, 2025.