A network of space-based telescopes in Earth orbit would provide final warning for any objects escaping the "Scouts" and Earth-based telescopes/radar would make follow-up observations on all objects passing in close proximity to Earth.
(A network of space-based telescopes in Earth orbit; would provide; final warning for any objects) (any objects; escaping; the "Scouts" and Earth-based telescopes/radar) (all objects; passing; L:in close proximity to Earth)
A network of space-based telescopes in Earth orbit any objects all objects
would provide escaping passing
final warning for any objects
the "Scouts" and Earth-based telescopes/radar
L:in close proximity to Earth