EGU2020-7113, updated on 28 Jul 2020
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Time sequence of TGFs and optical pulses detected by ASIM

Ingrid Bjørge-Engeland1, Nikolai Østgaard1, Chris Alexander Skeie1, Andrey Mezentsev1, Torsten Neubert2, Victor Reglero3, Martino Marisaldi1, Pavlo Kochkin1, Nikolai Lehtinen1, David Sarria1, Carolina Maiorana1, Anders Lindanger1, Kjetil Ullaland1, Georgi Genov1, Freddy Christiansen2, Olivier Chanrion2, and Matthias Heumesser2
Ingrid Bjørge-Engeland et al.
  • 1Birkeland Centre for Space Science, University of Bergen, Norway (
  • 2National Space Institute, Technical University of Denmark, Denmark
  • 3University of Valencia, Spain

In 2018, the Atmospheric Space Interactions Monitor (ASIM) was launched and mounted onboard the Columbus module of the International Space Station (ISS). Using data from the Modular X- and Gamma-Ray Sensor (MXGS) and the Modular Multispectral Imaging Array (MMIA), we investigate the time sequence of the TGFs detected by MXGS and the optical pulses detected by the MMIA. The optical pulses are observed in the 337 nm and 777.4 nm, and the X- and gamma-rays are detected by the High Energy Detector of MXGS, which is sensitive to energies from 300 keV to more than 30 MeV. We will also look into the TGF duration and any correlation with the time between the TGFs and the main optical signals. The data used is from June 2018 (shortly after mounting on the Columbus module) until the end of March 2019, when the relative timing uncertainty between the two instruments was +/- 80 us. The data after this is presented in Skeie et al.

How to cite: Bjørge-Engeland, I., Østgaard, N., Skeie, C. A., Mezentsev, A., Neubert, T., Reglero, V., Marisaldi, M., Kochkin, P., Lehtinen, N., Sarria, D., Maiorana, C., Lindanger, A., Ullaland, K., Genov, G., Christiansen, F., Chanrion, O., and Heumesser, M.: Time sequence of TGFs and optical pulses detected by ASIM, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-7113,, 2020