{
  "bibcode": "2012GCN.12960....1K",
  "body": "D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ),\nS. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto)\nand N. Kawai(Tokyo Tech)\nreport on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 120215A (Hoversten et al., GCNC 12954)\nwith the optical three color (g', Rc and Ic) CCD camera attached\nto the MITSuME 50cm telescope of Okayama Astrophysical Observatory.\n\nThe observation started on 2012-02-15 10:16:42 UT (9.6 h after the burst)\nWe did not find any new point source within the enhanced XRT circle\n(Evans et al., GCNC 12957) in all the three bands.\nWe also could not detect the previously reported afterglow (LaCluyze et al.,\nGCNC 12956).\n\n\nThree sigma upper limits of the OT are listed below. We used\nGSC2.3 catalog for flux calibration.\n\nT0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic\n------------------------------------------------------\n0.40591    10:25:46    1140.0   >19.1  >19.0  >18.5\n------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 12960,
  "createdOn": 1329324219000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 120215A: MITSuME Okayama Optical upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 120215A"
}