Images of a calibration star from commissioning activity PID 1023 – observations 13 (left) and 14 (right), part of a dithered sequence. The right image shows the appearance of cosmic shower artefacts in the detector image – an elongated structure in the centre right of the image as well as several more spherical showers that are not part of the sky image towards the upper left and lower right of the image. The high power cosmic ray also pulls-up the value of the entire row in which it hit the detector. Images are taken at 5.6 µm and processed to level 2a in the pipeline with flux units of DN s⁻¹. The target star at the top of the image can be used as a reference for the position on the sky.