{
  "bibcode": "2006GCN..4899....1P",
  "body": "A. Pereyra and A. M. Magalh�es (IAG, Univ. of S�o Paulo) report: \n\nWe obtained optical imaging of GRB 060218/SN 2006aj (Cusumano et al., GCN 4775) on  \n2006/March 3.958 (UT) using the IAG-USP 60cm telescope at the Laborat�rio Nacional de \nAstrof�sica (LNA), Brazil. The observation was made under poor sky conditions and \nthrough high airmass (>2). A 90-second exposure in the I filter yielded I = (17.06 +/- \n0.10) mag. The zero point calibration was obtained using comparison stars in the GRB \nfield from Hicken et al. (GCN 4898) and Modjaz et al. (astro-ph/0603377). \n\nThis message can be cited.",
  "circularId": 4899,
  "createdOn": 1142900076000,
  "email": "antonio@astro.iag.usp.br",
  "subject": "GRB 060218/SN 2006aj, LNA optical observation",
  "submitter": "Antonio Pereyra at IAG-U.Sao Paulo  <antonio@astro.iag.usp.br>",
  "eventId": "GRB 060218"
}