Swift observations of GRB 070209. Sato, G. ; Barthelmy, S. D. ; Stratta, G. ; Perri, M. ; Immler, S. ; Burrows, D. N. ; Roming, P. ; Gehrels, N. Abstract Publication: GCN Report Pub Date: 2007 Bibcode: 2007GCNR...32....1S