https://eblog.eb.mil.br/w/satelite-geoestacionario-de-defesa-e-comunicacoes-estrategicas-1-sgdc-1-?p_l_back_url=/web/guest?delta=60&tag=a%C3%A7%C3%B5es&tag=ci%C3%AAncia&tag=defesa&tag=hist%C3%B3ria&tag=v%C3%ADrus