Example of pixel masks used to create three versions of the light curves for star 45 (left) and 32 (right). The detected light curve is plotted within each pixel and represents an addition of 270 individual exposures of 6.54 s, added on board of the satellite. In long-cadence mode, such pixel data are downloaded from the spacecraft in time stamps of 29.42 min. The values listed in every pixel indicate the S/N level of the flux in the pixel. The red dots in the pixels with green and blue borders were used to extract the standard Kepler light curves. We also computed light curves based on the data in the yellow pixels alone and from adding the green, blue, and yellow pixels.