TITLE: GCN CIRCULAR NUMBER: 14153 SUBJECT: Swift Trigger 547142: MAXI/GSC upper limit DATE: 13/01/28 16:41:44 GMT FROM: Takanori Sakamoto at NASA/GSFC T. Sakamoto (AGU), M. Serino, M. Sugizaki, K. Morihana, T. Yamamoto, J. Sugimoto, T. Takagi, T. Mihara, M. Matsuoka (RIKEN), S. Ueno, H. Tomida, S. Nakahira, M. Kimura, M. Ishikawa (JAXA), N. Kawai, M. Morii, R. Usui, K. Ishikawa (Tokyo Tech), A. Yoshida, Y. Nakano (AGU), H. Tsunemi, M. Sasaki (Osaka U.), H. Negoro, M. Nakajima, M. Asada (Nihon U.), Y. Ueda, K. Hiroi, M. Shidatsu, R. Sato, T. Kawamuro (Kyoto U.), Y. Tsuboi, M. Higa (Chuo U.), M. Yamauchi, Y. Nishimura, T. Hanayama, K. Yoshidome, Y. Ogawa (Miyazaki U.), K. Yamaoka (ISAS) report on behalf of the MAXI team: The MAXI/GSC scanned the field of a probable Galactic source triggered by Swift BAT (trigger=547142; Cumming et al. GCN Circ. 14151) at 05:07:27 (69 min before the trigger) and 06:40:08 (24 min after the trigger) UT on 2013-01-28. The durations of each scan were 44 and 46 sec. No obvious source was detected by MAXI/GSC at the flight location of BAT. The 3 sigma upper limits of each scan derived by the MAXI/GSC data are 6.8 and 8.1 x 10^-10 erg/cm2/s (4-10 keV).