{
  "bibcode": "2004GCN..2903....1M",
  "body": "D. Malesani, G. Tagliaferri, G. Chincarini, S. Campana, S. Covino, L.A. \nAntonelli, M. Della Valle, F. Fiore, L. Stella, F.M. Zerbi, P. D'Avanzo, \nA. Moretti, and P. Romano report on behalf of the MISTICI collaboration:\n\nWe observed the field of GRB041223 (Tueller et al., GCN 2898; Burrows et \nal., GCN 2901) with the ESO-VLT-UT1 equipped with the ISAAC camera, \nstarting on 2004 Dec 24.256 (~16 hours after the GRB). The observing \nconditions were good, with a seeing of 0.6\". Twelve one-minute exposures \nwere acquired in the J band, with a mean UT 24.261.\n\nThe source reported by Berger et al. (GCN 2902) is clearly detected in \nour images, with a magnitude J = 19.51+-0.05, based on comparison with 3 \nnearby bright nonsaturated stars from the 2MASS catalog.\n\nWe warmly thank the ESO staff at Paranal, in particular Olivier Marco \nand Jonathan Smoker, for carefully performing the observations in \nservice mode.\n\nThis message can be cited.",
  "circularId": 2903,
  "createdOn": 1103889172000,
  "email": "malesani@sissa.it",
  "subject": "GRB 041223: J-band observations of the afterglow",
  "submitter": "Daniele Malesani at SISSA-ISAS,Trieste,Italy  <malesani@sissa.it>",
  "eventId": "GRB 041223"
}