Evgenios G. Pavlos^1,2, Olga Malandraki¹, Olga Khabarova³, Leonidas P Karakatsanis², George P Pavlos⁴ and George Livadiotis⁵, (1)National Observatory of Athens, IAASARS, Athens, Greece, (2)Democritus University of Thrace, Department of Environmental Engineering, Xanthi, Greece, (3)IZMIRAN, Troitsk, Moscow, Russia, (4)Democritus University of Thrace, Department of Electrical and Computer Engineering, Xanthi, Greece, (5)Southwest Research Institute, San Antonio, TX, United States