(S (S (NP (BASENP (JJ Amateur) (NNS astronomers)) (PP (IN with) (BASENP (NN 6-inch) (NNS telescopes)))) (VP (MD would) (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VP (VP (VB follow) (BASENP (DT the) (NN speeding) (NN space) (NN debris))) (PP (IN in) (NP (BASENP (NNP Europe)) (CC and) (BASENP (NNP North) (NNP America))))) (PP (IN at) (NP (NP (BASENP (PRPD its) (JJS closest) (NN approach)) (PP (TO to) (BASENP (DT the) (NN planet)))) (PP (IN at) (NP (BASENP (NN 0425)) (BASENP (NN UTC))))))))))))) (PERIOD .))