The error was well characterized and stable, enabling astronomers to optimize the results obtained using sophisticated image processing techniques such as deconvolution.Origin of the problem A commission headed by Lew Allen, director of the Jet Propulsion Laboratory, was established to determine how the error could have arisen.. 
Even before Hubble was launched, únàgbòzed ground-based Techniques such as ìwọ̀òòró masking interféròmetry had obtained higher-rẹ̀ ìràwọ̀ and infrared images than Hubble would achieve, though restricted to targets about 108 times Brighter than than the fast targets observed by Hubble.. 