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GCN Circular 11720

Subject

GRB 110213B: MAXI/GSC refined analysis

Date

2011-02-14T01:21:42Z (14 years ago)

From

Nobuyuki Kawai at Tokyo Tech <nkawai@hp.phys.titech.ac.jp>

M. Morii, N. Kawai, K. Sugimori, R. Usui, T. Toizumi (Tokyo Tech),
H. Negoro, M. Nakajima, H. Ozawa, F. Suwa (Nihon U.), , M. Serino, T. Mihara, 
Y.E. Nakagawa, M. Sugizaki, T. Yamamoto, T. Sootome, M. Matsuoka (RIKEN),
K. Kawasaki, S. Ueno, H. Tomida, M. Kohama, M. Ishikawa (JAXA),
A. Yoshida, K. Yamaoka,  S. Nakahira (AGU), H. Tsunemi, M. Kimura (Osaka U.),
Y. Ueda, N. Isobe, S. Eguchi, K. Hiroi (Kyoto U.), A. Daikyuji (Miyazaki U.), 
A. Uzawa, T. Matsumura, K. Yamazaki (Chuo U.) report on behalf of the MAXI team:


We report further analysis of MAXI/GSC GRB 110213B (GCN #11716Loading...
 
 ).
The refined position of the GRB is

(R.A., Dec) = (+41.61 deg, +1.19 deg) = (02 46 27, +01 11 14)(J2000)

with a rectangular 90% statistical error box with the following corners:

(R.A., Dec) = (+41.62 deg, +1.11 deg) = (02 46 29, +01 06 23)(J2000)
(R.A., Dec) = (+41.53 deg, +1.18 deg) = (02 46  7, +01 10 48)(J2000)
(R.A., Dec) = (+41.61 deg, +1.27 deg) = (02 46 26, +01 16  2)(J2000)
(R.A., Dec) = (+41.70 deg, +1.19 deg) = (02 46 48, +01 11 37)(J2000)

Without assumptions on the source constancy,
we obtain a rectangular error box with the following corners:

(R.A., Dec) = (+41.40 deg, +0.87 deg) = (02 45 36, +00 52 14)(J2000)
(R.A., Dec) = (+41.31 deg, +0.94 deg) = (02 45 13, +00 56 41)(J2000)
(R.A., Dec) = (+41.75 deg, +1.42 deg) = (02 46 59, +01 25 10)(J2000)
(R.A., Dec) = (+41.84 deg, +1.35 deg) = (02 47 22, +01 20 45)(J2000)

There is additional systematic uncertainty of 0.2 deg (90% containment radius).