TITLE: GCN CIRCULAR NUMBER: 11410 SUBJECT: XRF101117A: MAXI/GSC detection of a short X-ray transient DATE: 10/11/17 11:00:04 GMT FROM: Motoko Suzuki at RIKEN K. Yamazaki (Chuo U.), M. Morii (Tokyo Tech), M. Serino (RIKEN), A. Uzawa, T. Matsumura (Chuo U.), N. Kawai, K. Sugimori, R. Usui (Tokyo Tech), 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.), H. Negoro, M. Nakajima H. Ozawa, F. Suwa (Nihon U.), Y. Ueda, N. Isobe, S. Eguchi, K. Hiroi (Kyoto U.), A. Daikyuji (Miyazaki U.), report on behalf of the MAXI team: At the scan transit centered at UT 2010-11-17 07:32:59 MAXI/GSC detected a short X-ray transient lasting about 32 seconds within the 60 seconds triangular transit response of MAXI/GSC. Assuming the source constancy, we obtained the best fit position as the following: (R.A., Dec) = (+89.63 deg, -2.30 deg) = (05 58 31, -02 17 59)(J2000) We obtain a rectangular error box with the following corners: (R.A., Dec) = (+89.38 deg, -2.56 deg) = (05 57 30, -02 33 37)(J2000) (R.A., Dec) = (+89.27 deg, -2.21 deg) = (05 57 6, -02 12 25)(J2000) (R.A., Dec) = (+89.88 deg, -2.04 deg) = (05 59 32, -02 02 16)(J2000) (R.A., Dec) = (+89.99 deg, -2.39 deg) = (05 59 57, -02 23 24)(J2000) This error box indicates statistical error with 90 percent confidence level, and there is additional systematic uncertainty of 0.2 deg (90% containment radius). The preliminary flux (4-10 keV) of the source was at least 200 mCrab. There was no significant detection at the transit location in the previous and following orbits (92 min before or after the detection) with an upper limit of 20 mCrab. There is no known bright X-ray source at the detected position. Follow-up observations are encouraged.