{
  "bibcode": "2013GCN.15152....1M",
  "body": "G. Masi (Ceccano, Italy) and F. Nocentini (Frosinone, Italy) report:\n\nOn Sept 1.0599 2013 UT, we imaged the field around GRB 130831A (GCN 15139) \nremotely using the the 0.43m-f/6.8 robotic unit part of the Virtual\nTelescope robotic facility in Italy, about 12 hours after the burst.\n\nThe source is visible on 300 seconds unfiltered CCD images\nfollowing coordinates (J2000.0):\n\nR.A. = 23 54 29.89\nDecl. +29 25 46.6\n\nWe also performed photometry, assuming R-mags from UCAC-4 for the stars in the\nfield, getting an estimate for the magnitude of 19.1 (CR).\n\nObservations are ongoing.",
  "circularId": 15152,
  "createdOn": 1378000473000,
  "email": "gianluca@bellatrixobservatory.org",
  "subject": "GRB 130831A: Optical Observations via Virtual Telescope",
  "submitter": "Gianluca Masi at Bellatrix Astronomical Obs  <gianluca@bellatrixobservatory.org>",
  "eventId": "GRB 130831A"
}