{
  "bibcode": "2013GCN.14878....1J",
  "body": "P. Jakobsson (U. Iceland), D. Xu (DARK/NBI), D. Malesani (DARK/NBI),\nK. Mikkelsen (U. Oslo), N. Aghanim (CNRS & Universite Paris-Sud Orsay)\nreport on behalf of a larger collaboration:\n\nWe observed the optical afterglow of GRB 130612A (Racusin et al., GCN\n14874; Melandri et al., GCN 14875) using the 2.5-m Nordic Optical\nTelescope (NOT) equipped with the ALFOSC camera. We obtained 4x300s\nR-band images with a median time 04:06:09 UT on 12 June 2013 (i.e.\n0.73 hr after the burst).\n\nThe optical afterglow was clearly detected with R ~ 20.3 mag\ncalibrated with nearby stars in the USNO B1 catalog.\n\n[GCN OPS NOTE(12jun13): Per author's request, NA was added to the author list.]",
  "circularId": 14878,
  "createdOn": 1371012612000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 130612A: NOT optical observations",
  "submitter": "Dong Xu at DARK/NBI  <dong.dark@gmail.com>",
  "eventId": "GRB 130612A"
}