{
  "bibcode": "2013GCN.15021....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 MITSuME collaboration:\n\nWe observed the field of GRB 130722A (Troja et al., GCNC 15013)\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 2013-07-22 11:15:06 UT (~2.9 h after the burst).\nWe could not detect the previously reported afterglow\n(Melandri et al., GCNC 15015; Trotter et al., GCNC 15017) in all the three bands.\n\nThree sigma upper limits of the OT are listed below.\nWe used GSC 2.3 catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc     Ic\n-----------------------------------------------------\n0.23056    13:51:20    9000.0   >18.7  >18.8  >18.3\n-----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 15021,
  "createdOn": 1374541088000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 130722A: MITSuME Okayama upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 130722A"
}