IACHEC 2026@Bad Endorf in Germany

We gathered again in Bad Endorf, a beautiful city with a lake, 1 hour away from Munich, to have a yearly meeting on the international cross calibration of X-ray astronomical satellites. This year I have shared the calibration status of XRISM Xtend and “flaring” events seen with Xtend during non-science observations. As we are in the solar maximum, other satellite missions are also seeing such abrupt events, probably related to solar or geomagnetic activity. It seems that we have a lot of valuable data on space weather.