Raw white light curves of HAT-P-32Ab (yellow circles) and Ref2 (red circles) from Run 2 plotted over the instrument rotation angle for better visualization of the systematic noise signal consisting of two bump-like features. Both curves were corrected by an air mass term and the curve of HAT-P-32A was divided by a theoretical transit. For both raw light curves a rough theoretical approximation of the data consisting of a sequence of two Gaussian functions is plotted over the data (yellow and red lines).