Segmented primary mirror telescope image quality estimation

The model of distortions caused by mistakes in installation of mirrors of a compound telescope of the large diameter is offered. The results, received on the basis of model, calculated according to the formulas for average image in a plane of its formation, it variance and characteristic of speckle structure of the image are resulted. It is shown, that the researched distortions should be taken into account at a choice of an installation site of a telescope, at processing the information in a service of meteoric and asteroid safety and fundamental astrophysical researches.