{
  "bibcode": "2013GCN.14854....1I",
  "body": "M. Im (CEOU/SNU), H.-I. Sung(KASI), and Y. Urata (NCU) \non behalf of EAFON\n\nWe observed the field of GRB 130610A (Cummings et al. GCN 14842),\nusing a 1-m telescope at Mt. Lemmon Optical Observatory (LOAO) in\nArizona, US. The observation started at 2013-06-10 05:54:16 UT,\nabout 2.7 hrs after the burst alert, and a series of images were \ntaken in B, R, and I-band for about 40 min.\n\nWe identify the afterglow (Melandri et al. GCN 14843), in all the \nthree bands, with approximate magnitude of B = 21.35 +- 0.12, \nV=20.90 +- 0.26, and R=20.35 +- 0.18, all in Vega magnitude, calibrated \nagainst a star in the vicinity using SDSS photometry converted to BVR.\n\nWe thank the LOAO operator, In-Kyung Baek for performing \nthe observation.",
  "circularId": 14854,
  "createdOn": 1370877899000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB 130610A: LOAO BVR Observation",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 130610A"
}