TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3523 SUBJECT: GRB050607: prompt REM observations DATE: 05/06/07 10:19:12 GMT FROM: Stefano Covino at Brera Astronomical Observatory V. Testa, D. Fugazza, S. Covino, S. Campana, E. Molinari, F.M. Zerbi, G. Chincarini, M. Rodono', G. Tosti, L.A. Antonelli, P. Conconi, G. Cutispoto, L. Nicastro, E. Palazzi, F. Vitali, E. Meurs, P. Goldoni, on behalf of the REM/ROSS Team We imaged the field of GRB050607 with the robotic 60-cm REM telescope located at La Silla, Chile. Observations were performed in fully automated mode simultaneously in the near infrared and in the optical, starting approximately 47 seconds after the alert. REM is equipped with the REMIR near infrared camera (10x10 sq arcmin FoV, JHK filters) and the ROSS optical spectrograph/imager (10x10 sq arcmin FoV, VRI filters and AMICI prism). Observations were performed under good seeing conditions. A quick-look analysis does not reveal any new bright object in H band down to approximately the 15th magnitude. This message may be cited.