050421 VLA 2005 Apr. 21.62 0.45 8.46 -99 34 gcn3308 050421 VLA 2005 Apr. 26.57 5.40 4.86 -99 35 xxxxxxx 050421 VLA 2005 Apr. 26.60 5.43 8.46 -99 27 xxxxxxx 050421 VLA 2005 May 18.53 27.36 8.46 -99 35 xxxxxxx The quoted rms noise in GCN3308 is too low by a factor of 2. It has been corrected here. The entries in this file (from left to right) are the GRB name, the radio telescope used to carry out the observation, the UT date of the observation (usually taken at the midpoint of the integration), the time since the burst in days, the observing frequency in GHz, the flux density, the rms noise, and a reference noting where the data were published. For those cases where no flux density measurements were made, the flux density column contains "-99".