Possibility of antiquark nuggets detection using meteor searching radars

Within the quark nugget model, dark matter particles may be represented by compact composite objects composed of a large number quarks or antiquarks. Due to strong interaction with visible matter, antiquark nuggets should manifest themselves in form rare atmospheric events on Earth. They produce ionized trails atmosphere similar meteor trails. There are, however, several features which allow one distinguish from ones. We study properties air and show that they registered standard radar detectors. Non-observation such pushes up mean baryon charge $|B|>4\times 10^{27}$.