© Sebastián Sánchez Zelada and Marcello MercadoAzimuth 77, 2006Performance,21 min. 26 sec.,stereo 4:3 colourhttp://vimeo.com/59615529This video is about a serie of performances that relates specific points in the tracking of Iridium-mobile satellite ; 2006 Marcello Mercado/ Sebastian Sánchez Zelada