{
  "bibcode": "2017GCN.21243....1S",
  "body": "M. Shidatsu, S. Motoko (RIKEN), H. Negoro (Nihon U.), \nS. Ueno, H. Tomida, M. Ishikawa, Y. Sugawara, N. Isobe (JAXA),\nT. Mihara, M. Sugizaki, S. Nakahira, W. Iwakiri, M. Matsuoka (RIKEN), \nN. Kawai, S. Sugita, T. Yoshii, Y. Tachibana, S. Harita, Y. Muraki, K. Morita (Tokyo Tech), \nA. Yoshida, T. Sakamoto, Y. Kawakubo, Y. Kitaoka, T. Hashimoto (AGU), \nH. Tsunemi, T. Yoneyama (Osaka U.), \nM. Nakajima, T. Kawase, A. Sakamaki (Nihon U.),\nY. Ueda, T. Hori, A. Tanimoto, S. Oda (Kyoto U.), \nY. Tsuboi, Y. Nakamura, R. Sasaki (Chuo U.), \nM. Yamauchi, C. Hanyu, K, Hidaka (Miyazaki U.), \nT. Kawamuro (NAOJ), \nK. Yamaoka (Nagoya U.) \n\nreport on behalf of the MAXI team:\nThe MAXI/GSC nova alert system triggered a bright uncatalogued X-ray transient source \nat UT 20:42:58 UT on 2017 June 10. \nAssuming that the source flux was constant over the transit,\nwe obtain the source position at\n(R.A., Dec) = (92.567 deg, -9.420 deg) = (06 10 16, -09 25 11) (J2000)\nwith a statistical 90% C.L. elliptical error region\nwith long and short radii of 0.24 deg and 0.2 deg, respectively.\nThe roll angle of long axis from the north direction is 123.0 deg counterclockwise. \nWe estimated a rectangular error box for the transient source with the following corners:\n(91.851, -10.701) deg = (06 07 24, -10 42 03) (J2000)\n(91.421, -10.332) deg = (06 05 40, -10 19 54) (J2000)\n(92.681, -8.737) deg = (06 10 43, -08 44 13) (J2000)\n(93.111, -9.105) deg = (06 12 26, -09 06 16) (J2000).\nThere is an additional systematic uncertainty of 0.1 deg (90% containment radius).\n\nThe X-ray flux averaged over the scan was 127 +- 23 mCrab\n(4.0-10.0keV, 1 sigma error).\nThere was no significant excess flux in the previous transit at UT 19:10\nand in the next transit at UT 22:15 with an upper limit of 20 mCrab for each.",
  "circularId": 21243,
  "createdOn": 1497138016000,
  "email": "motoko@crab.riken.jp",
  "subject": "GRB 170610A: MAXI/GSC detection",
  "submitter": "Motoko Suzuki at RIKEN  <motoko@crab.riken.jp>",
  "eventId": "GRB 170610A"
}