The Ax-4 crew has left the ISS on 14 July so the mission to observe TLEs from up there has come to an end. Evaluation of the observations is underway.

Nevertheless, the ground campaign to observe TLEs continues until the end of July, so we encourage you to keep an eye on the lightning activity in your area and also keep your camera ready!

Summer nights are filled with electricity which summons red sprites and other TLEs. Let us have a picture of them! 🙂