Prediction of the image quality of the data cubes of the galaxies based on the airmass and DIMM seeing vs the DIMM seeing. The plus signs show the measured image quality in the reduced cubes of the standard star observations plotted vs the DIMM seeing in the fits headers. The filled circles show the predicted IQ using the formulas from the ETC with the airmass and DIMM seeing from the fits headers. The star signs show the predicted IQ values for the science observations. The dotted line shows the one-to-one relation.