{
  "bibcode": "2015GCN.17908....1K",
  "body": "T. Kruehler (ESO) & A. A. Djupvik (NOT) report on behalf of a larger\ncollaboration:\n\nWe observed the field of GRB 150607A (D'Elia et al., GCN 17904) using\nthe Nordic Optical Telescope equipped with the ALFOSC camera.\n\nA short series of photometry in BVRI filters was taken starting at\n2015-06-07 21:43UT. The optical afterglow (D'Elia et al., GCN 17094) of\nGRB 150607A is well detected in our images. We measure R = 21.6 +/- 0.2\nmag at 13.76 hours after the trigger, calibrated against magnitudes\nof nearby stars from the USNO-B1 catalog.",
  "circularId": 17908,
  "createdOn": 1433720560000,
  "email": "tom@dark-cosmology.dk",
  "subject": "GRB 150607A: NOT optical observations",
  "submitter": "Thomas Kruehler at Dark Cosmology Center  <tom@dark-cosmology.dk>",
  "eventId": "GRB 150607A"
}