N. Østgaard, A. Mezentsev, M. Marisaldi, D. Sarria, K. Ullaland, G. Genov, T. Neubert, O. Chanrion, F. Christiansen, S. A. Cummer, G. Lu, V. Reglero, Double TGFs and optical pulses observed by ASIM, AGU Fall Meeting, New Orleans, US, Dec. 13-17, 2021