{
  "bibcode": "2000GCN...598....1V",
  "body": "The candidate for the optical transient (OT) associated with the gamma ray burst\nGRB000301c has been observed in imaging mode with MOS on the 3.6-m CFH Telescope\nin the course of the French GRB follow-up program at CFHT (M. Boer, CESR,\nC. Veillet, CFHT).\n\nThe OT has the following magnitude, using star A (GCN573) photometry (GCN583):\n\nR = 21.70 +/- 0.07   2000 March 7.65 (UTC)\n\nThis value does not fit very well with the the R magnitudes published in the \nprevious GCN, in particular by Mohan(595), if we assume a power law common\nto all observations. In fact, the best fit of the data published so far is \nobtained  with a linear magnitude decay of 0.32 +/- 0.02 mg/day... \nThe acceleration in the decay in K (GCN596) seems also to be seen in R.\nMore data, as well as a careful reanalysis of the existing images, are \nclearly needed!\n\nThe faint source found on March 5 (GCN592), recognized in GCN594 as identical \nto the one detected in IR at NASA IRTF, is definitely there also \non the March 7 image. A composite of the two images is available at\nhttp://www.cfht.hawaii.edu/~veillet/grb.html .\nIts R magnitude is measured as 24.3 +/- 0.3 , to be refined with further \nanalysis.\n\nS. Lilly is acknowledged for his help in this observation.\n\nThis message may be cited.\n-- \n************************************************************\nDr. Christian Veillet,       CFHT Senior Resident Astronomer\nPhone: (808) 885-3161   http://www.cfht.hawaii.edu/~veillet/\n************************************************************",
  "circularId": 598,
  "createdOn": 952469879000,
  "email": "veillet@cfht.hawaii.edu",
  "subject": "GRB000301c - R photometry and nearby faint source confirmation",
  "submitter": "Christian Veillet at CFHT  <veillet@cfht.hawaii.edu>",
  "eventId": "GRB 000301C"
}