{
  "bibcode": "2013GCN.14800....1I",
  "body": "M. Im (CEOU/SNU), H.-I. Sung(KASI), and Y. Urata (NCU) \non behalf of EAFON\n\nWe observed the afterglow of GRB 130606A (Ukwatta et al. GCN 14781),\nusing a 1-m telescope at Mt. Lemmon Optical Observatory (LOAO) in\nArizona, US. The observation started at 2013-06-07 03:50:26 UT,\nabout 6.75 hrs after the burst alert, and a series of images were \ntaken in I, Z, and Y-bands for about 1 hr.\n\nWe identify the afterglow, in all the three bands,\nwith approximate magnitudes of I = 20.8 +- 0.1, Z=18.70 +- 0.11,\nand Y=18.49 +- 0.29, all in AB magnitude, calibrated against a star\nin vicinity using SDSS and 2MASS photometry. This confirms \nearlier reports of the afterglow detection and its sharp drop in\nSED between I-band and Z-band that is expected at z=5.91 \n(Jelinek et al. GNC 14782; Xu et al.GCN 14783; Nagayama et al. GCN 14784; \nVirgili et al. 14785; Masi et al. GCN 14789; Leonini et al. GCN 14791; \nSonbas et al., GCN 14797; Lunnan et al. GCN 14798; Castro-Tirado et al. \nGCN 14790; Butler et al. GCN 14799).\n\nWe thank the LOAO operator, Jae-Hyuk Yoon for performing \nthe observation.",
  "circularId": 14800,
  "createdOn": 1370594067000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB 130606A: LOAO IZY Observation",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 130606A"
}