TITLE: GCN CIRCULAR NUMBER: 5907 SUBJECT: GRB 061202: Suzaku WAM observation of the prompt emission DATE: 06/12/11 16:06:02 GMT FROM: Kazutaka Yamaoka at Aoyama Gakuin U K. Onda, M. Tashiro, K. Abe, Y. Sato, M. Suzuki, Y. Urata (Saitama U.), K. Yamaoka, S. Sugita (Aoyama Gakuin U.), M. Ohno, T. Takahashi, T. Asano, T. Uehara, Y. Fukazawa (Hiroshima U.), Y. Terada, M. Suzuki, T. Tamagawa (RIKEN), T. Enoto, R. Miyawaki, K. Kokubun, K. Makishima (Univ. of Tokyo), K. Nakazawa, T. Takahashi (ISAS/JAXA), S. Hong (Nihon U.), on behalf of the Suzaku WAM team report: The bright, long burst, GRB 061202 (Sakamoto et al., GCN 5886; 5887), triggered the Suzaku Wide-band All-sky Monitor (WAM), which covers the energy range of 50 keV - 5 MeV, at 08:12:59.625 (UT). A FRED type peak and following weak and broad hump were seen in the WAM light curve. The T90 duration was about 64 seconds. The fluence in 100 - 500 keV was (5.0 +- 0.6)x10^-6 erg/cm2, while the 1-s peak flux was 0.80 +- 0.05 photons/cm2/s in the same energy range. Preliminary result shows that the spectrum of the main peak, integrated during T0 to T0+50s is well-described with a single power-law model with the photon index of 1.78 (-0.22, +0.21). All the quoted errors are at statistical 90% confidence level, while systematic errors are not included. The WAM light curve of this event is available at http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/grb_table.html