TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4693 SUBJECT: GRB060206: Liverpool Telescope observation DATE: 06/02/06 10:05:14 GMT FROM: Cristiano Guidorzi at ARI,Liverpool JMU C. Guidorzi, A. Monfardini, A. Gomboc, C.G. Mundell, A. Melandri, C.J. Mottram, R.J. Smith, I.A. Steele, D. Carter, M. Burgdorf, S. Kobayashi, D. Bersier, M.F. Bode (Liverpool JMU) report: "The 2-m Liverpool Telescope followed up the GRB060206 (Morris et al, GCN 4682) and started observing its position at 5.23 min after the GRB. We detect the optical afterglow in agreement with the candidate from Fynbo et al. (GCN 4683) and Boyd et al. (GCN 4684). The magnitude of the afterglow was R~16.5 (USNO-B1 calibrated) at ~5.2 min after the burst. After an initial fading, we confirm the rebrightening (Wozniak et al., GCN 4687) with R~16.3 at 60 min after the burst trigger time."