{
  "bibcode": "2003GCN..2195....1N",
  "body": "S. Nishiyama, D. Baba, T. Nagata (Nagoya U.), N. Matsunaga (U. of Tokyo),\nand IRSF/SIRIUS team (Nagoya U., NAOJ), N. Kawai (Tokyo Tech), N. Tanvir\n(U. of Hertfordshire) report:\n\nWe observed the SXC error box of GRB 030429 (HETE alert 2695) with the\nSimultaneous three-color InfraRed Imager for Unbiased Survey (SIRIUS) on\nthe Nagoya-SAAO 1.4m telescope (IRSF).  For the afterglow candidate\nproposed by Gilmore et al. (GCN 2184), we get the J H Ks magnitudes at 4\nepochs begining 6.6 hrs after the burst:\n\n   UTmid     J     H     Ks\nApr 29.727  18.8  17.8  17.0\nApr 29.873  19.2  18.3  17.5\nApr 30.005  18.9  18.1  17.4\n----------------------------\nApr 30.768  19.0  18.4  17.8\n\nWe estimate the uncertainty in the magnitudes is about 0.2 mag. The Ks\nmagnitude seems to be consistent with that at April 30.20 reported by\nFynbo et al. (GCN 2185).  These observations confirm the fading\nbehaviour, but they were made under non-photometric conditions, and\nthe effect of the nearby NW source (GCN 2185) makes the photometry\nless reliable, suggesting the results should be treated with caution.\n\nThis message may be cited.",
  "circularId": 2195,
  "createdOn": 1051878344000,
  "email": "nrt@ast.cam.ac.uk",
  "subject": "GRB 030429: IR photometry with IRSF/SIRIUS",
  "submitter": "Nial Tanvir at IofA U.Cambridge  <nrt@ast.cam.ac.uk>",
  "eventId": "GRB 030429"
}