{
  "bibcode": "2013GCN.14395....1H",
  "body": "Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill\nObservatory, Varkaus, Finland) report:\n\nWe have detected GRB 130418A optical afterglow at iTelescope observatory \nT21 (Mayhill, New Mexico) 0.43-m/6.8 astrograph and FLI ProLine PL6303E \nCCD. One unfiltered image with 600 sec exposure time was made.\n\nThe afterglow was detected at following position RA 09:56:08.87 and DEC \n+13:40:02.7.\n\nThe following magnitude was obtained from the image using NOMAD1 \n1036-0179295 (R = 14.910) as the comparison:\n\nTmid(h) +To     Filter         Exp.time   Mag          Mag err. \n10.96               unfiltered    600          19.018       0.277",
  "circularId": 14395,
  "createdOn": 1366390776000,
  "email": "veli-pekka.hentunen@kassiopeia.net",
  "subject": "GRB 130418A: T21 optical observation",
  "submitter": "Veli-Pekka Hentunen at Taurus Hill Obs,A95  <veli-pekka.hentunen@kassiopeia.net>",
  "eventId": "GRB 130418A"
}