155 Event=2011/154.750-2011/155.750 Sp.Index=-0.938+/- 0.001 He/H=0.0417+/-0.0001 end 159 Event=2011/159.250-2011/159.875 Sp.Index=-1.868+/- 0.001 He/H=0.0329+/-0.0001 end