A poster has been presented in the Atmospheric Electricity session of the EGU26 international conference on the great contribution of ground-based citizen observers to the UHU experiment.

The poster demonstrates that all conditions were met to observe TLEs from the space and from the ground simultaneously. The only thing that prohibited the fulfillment of this objective was the unfortunate selection of observation targets for the astronauts.

TLEs, nevertheless, have been observed from orbit in the UHU experiment. The evaluation of the collected records is still to be done.

The pdf fájl of the poster can be read => here.

Citation: Bór, J. and Yair, Y.: The contribution of citizen observers to the UHU lightning and TLE observation campaign on the International Space Station in 2025, EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-6579, https://doi.org/10.5194/egusphere-egu26-6579, 2026.